Lab & Pilot Filter Press | Bench Trials & Scale-Up Data | Loway Equipment<\/title><meta name=\"description\" content=\"Run bench filtration trials on 5-600 L of slurry. Loway lab filter presses return cake moisture, cycle time, cloth performance and the scale-up data used to size a production press. Lab-200 to Lab-630.\"><\/p>\n<style>\/* ====== LOWAY LAB FILTER PRESS CSS V1 (.lw-lab) ====== *\/\/* ========== Page-scoped variables + brand skin (.lw-lab) ========== *\/ .lw-home.lw-lab{--lw-red:#760000;--lw-navy:#222334;--lw-mist:#f3f4f8;--lw-line:#e7e9ee;--lw-ink:#1d2030;--lw-muted:#5b6275;--lw-red-soft:#9b1c1c} .lw-home.lw-lab,.lw-home.lw-lab p,.lw-home.lw-lab a,.lw-home.lw-lab li,.lw-home.lw-lab td,.lw-home.lw-lab th,.lw-home.lw-lab button{font-family:'Inter','Segoe UI',Arial,sans-serif;color:var(--lw-ink)} .lw-home.lw-lab h1,.lw-home.lw-lab h2,.lw-home.lw-lab h3,.lw-home.lw-lab h4{font-family:'Poppins','Inter',Arial,sans-serif;color:var(--lw-ink);letter-spacing:-.005em} .lw-home.lw-lab a:not([class*=\"btn\"]):not([class*=\"lw-btn\"]):not([class*=\"lw-cta\"]):not(.lw-lab-rname){color:var(--lw-red);text-decoration:none} .lw-home.lw-lab a:not([class*=\"btn\"]):not([class*=\"lw-btn\"]):not([class*=\"lw-cta\"]):not(.lw-lab-rname):hover{text-decoration:underline} .lw-home.lw-lab 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li:before{content:\"\";position:absolute;left:0;top:13px;width:8px;height:8px;background:var(--lw-red)} @media (max-width:900px){.lw-lab-comp{grid-template-columns:1fr}} \/* ========== MEDIA OPTIONS (3x2 cards) ========== *\/ .lw-lab-media{display:grid;grid-template-columns:repeat(3,1fr);gap:18px} .lw-lab-media .lw-lab-card{background:#fff;border:1px solid var(--lw-line);border-radius:6px;padding:22px 22px 20px;display:flex;flex-direction:column;gap:10px} .lw-lab-media .lw-lab-card .mat{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--lw-red);font-weight:700} .lw-lab-media .lw-lab-card h3{font-size:16px;margin:0;color:var(--lw-navy)} .lw-lab-media .lw-lab-card p{font-size:13.5px;color:var(--lw-muted);line-height:1.6;margin:0} .lw-lab-media .lw-lab-card .where{font-size:12px;color:var(--lw-navy);background:#f3f4f8;padding:6px 10px;border-radius:3px;font-weight:600;margin-top:auto} @media (max-width:900px){.lw-lab-media{grid-template-columns:1fr 1fr}} \/* ========== SELECTION GUIDE ========== *\/ .lw-lab-sel{display:grid;grid-template-columns:1fr;gap:0;background:#fff;border:1px solid var(--lw-line);border-radius:6px;overflow:hidden} .lw-lab-sel .q{padding:18px 22px;border-bottom:1px solid var(--lw-line);display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start} .lw-lab-sel .q:last-child{border-bottom:none} .lw-lab-sel .q .num{font-size:13px;font-weight:700;color:var(--lw-red);letter-spacing:.06em;text-transform:uppercase;padding-top:2px;min-width:140px} .lw-lab-sel .q .num span{display:block;font-size:11px;color:var(--lw-muted);font-weight:600;margin-top:2px;letter-spacing:.04em} .lw-lab-sel .q h3{font-size:16px;color:var(--lw-navy);margin:0 0 6px} .lw-lab-sel .q p{margin:0;font-size:14px;line-height:1.6;color:var(--lw-muted)} .lw-lab-sel .q .rec{margin-top:8px;font-size:12.5px;color:var(--lw-navy);background:#f3f4f8;padding:6px 10px;border-radius:3px;display:inline-block;font-weight:600} @media 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.lw-lab-cmp-col{padding:22px 24px} .lw-lab-cmp-col:first-child{border-right:1px solid var(--lw-line);background:#fafbfd} .lw-lab-cmp-col h3{font-size:17px;color:var(--lw-navy);margin:0 0 6px} .lw-lab-cmp-col .for{font-size:12px;color:var(--lw-red);font-weight:700;letter-spacing:.06em;text-transform:uppercase;margin-bottom:12px} .lw-lab-cmp-col ul{margin:0;padding-left:18px} .lw-lab-cmp-col li{font-size:13.5px;color:var(--lw-muted);line-height:1.65;margin-bottom:7px} @media (max-width:900px){.lw-lab-cmp{grid-template-columns:1fr}.lw-lab-cmp-col:first-child{border-right:none;border-bottom:1px solid var(--lw-line)}} .lw-lab-apps4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px} .lw-lab-apps4 .lw-lab-card{background:#fff;border:1px solid var(--lw-line);border-radius:6px;overflow:hidden;display:flex;flex-direction:column;text-decoration:none} .lw-lab-apps4 .lw-lab-card:hover{border-color:var(--lw-red)} .lw-lab-apps4 .lw-lab-card:hover h3{color:var(--lw-red)} .lw-lab-apps4 .pic{background:#f3f4f8;height:150px;display:flex;align-items:center;justify-content:center;overflow:hidden} .lw-lab-apps4 .pic img{width:100%;height:100%;object-fit:cover;display:block} .lw-lab-apps4 .body{padding:14px 16px 16px} .lw-lab-apps4 .body h3{font-size:14.5px;color:var(--lw-navy);margin:0 0 6px} .lw-lab-apps4 .body p{font-size:12.5px;color:var(--lw-muted);line-height:1.5;margin:0} @media (max-width:900px){.lw-lab-apps4{grid-template-columns:1fr 1fr}} .lw-lab-note{font-size:13px;color:var(--lw-muted);line-height:1.6;margin-top:10px}\/* ====== \/LOWAY LAB FILTER PRESS CSS V1 (.lw-lab) ====== *\/<\/style>\n<p><\/head><body class=\"page-template-default\"><script>document.body.classList.add('lw-v7');<\/script><\/p>\n<div class=\"lw-home lw-eng lw-lab\"><\/p>\n<section class=\"lw-lab-hero\" id=\"hero\">\n<div class=\"lw-hero-inner\">\n<div class=\"lw-lab-hero-text\"><span class=\"lw-kicker\">Lab & Pilot Filter Press · Bench Trials & Scale-Up<\/span><\/p>\n<h1>Lab Filter Press for Bench Trials and Pilot Scale-Up<\/h1>\n<p class=\"lw-lead\">Run the same batch pressure filtration as a production press, on five litres instead of fifty cubic metres. Loway lab units turn a small slurry sample into cake moisture, cycle time and cloth data \u2014 the numbers that decide the size of the plant.<\/p>\n<div class=\"lw-btn-row\"><a class=\"lw-btn-primary\" href=\"\/contact-us\/?topic=lab-quote\">Request a Lab Filter Press Quotation<\/a><a class=\"lw-btn-ghost\" href=\"#scale\">Pick a Bench Scale<\/a><\/div>\n<\/div>\n<div class=\"lw-hero-pic\"><img decoding=\"async\" src=\"https:\/\/lowayequipment.com\/wp-content\/uploads\/2025\/03\/Loway-equipment-small-filter-press.png\" alt=\"Loway bench-top lab filter press in white and blue finish with compact plate pack and feed pump\"><\/div>\n<\/div>\n<div class=\"lw-lab-strip\">\n<div class=\"item\">\n<div class=\"v\">4 <small>models<\/small><\/div>\n<div class=\"l\">Lab-200 to Lab-630<\/div>\n<\/div>\n<div class=\"item\">\n<div class=\"v\">0.1–15 <small>m²<\/small><\/div>\n<div class=\"l\">Filtration area<\/div>\n<\/div>\n<div class=\"item\">\n<div class=\"v\">1–200 <small>L<\/small><\/div>\n<div class=\"l\">Cake per cycle<\/div>\n<\/div>\n<div class=\"item\">\n<div class=\"v\">0.1–2.0 <small>MPa<\/small><\/div>\n<div class=\"l\">Test pressure<\/div>\n<\/div>\n<div class=\"item\">\n<div class=\"v\">5–600 <small>L<\/small><\/div>\n<div class=\"l\">Slurry per test<\/div>\n<\/div>\n<\/div>\n<\/section>\n<p><\/p>\n<section class=\"lw-lab-sec tone\" id=\"who\">\n<div class=\"lw-sec-inner\">\n<h2>Who Runs a Bench Filter Press<span class=\"sub\">Four teams that start with a sample, not a truckload<\/span><\/h2>\n<p class=\"lw-lead2\">A lab press is bought for the data it produces, not for the tonnage it dewaters. These are the groups that specify one.<\/p>\n<div class=\"lw-lab-who\">\n<div class=\"lw-lab-who-card\">\n<div class=\"tag\">Scale-up<\/div>\n<h3>Process engineers sizing a plant<\/h3>\n<p>You have a sludge or process stream and need a filtration area before the plant is committed. One bench run gives the resistance, cycle time and cake dryness the sizing calculation needs.<\/p>\n<\/div>\n<div class=\"lw-lab-who-card\">\n<div class=\"tag\">Formulation<\/div>\n<h3>R&D and recipe labs<\/h3>\n<p>New products and reformulations where the sample is limited and cloth, pressure and conditioning all have to be screened before anything is fixed.<\/p>\n<\/div>\n<div class=\"lw-lab-who-card\">\n<div class=\"tag\">Teaching<\/div>\n<h3>Universities and institutes<\/h3>\n<p>Teaching separation fundamentals and publishing characterised data on a unit that is safe, quiet and simple enough for students to run supervised.<\/p>\n<\/div>\n<div class=\"lw-lab-who-card\">\n<div class=\"tag\">Production<\/div>\n<h3>Small-batch, high-value producers<\/h3>\n<p>APIs, catalysts, essential oils and precious-metal streams where the lab press is not a test rig but the production unit itself.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<p><\/p>\n<section class=\"lw-lab-sec\" id=\"outputs\">\n<div class=\"lw-sec-inner\">\n<h2>What One Bench Test Returns<span class=\"sub\">Six numbers that decide the production press<\/span><\/h2>\n<p class=\"lw-lead2\">Every run is logged against pressure and time. The output is a data sheet you can hand to a design engineer, not an impression of whether the slurry looked filterable.<\/p>\n<div class=\"lw-lab-data\">\n<div class=\"lw-lab-data-card\"><span class=\"metric\">Cake moisture<\/span><\/p>\n<h3>Dryness at each pressure<\/h3>\n<p>Cake is weighed before and after drying, giving percent dry solids at every pressure step so the target dryness is set from measurement.<\/p>\n<\/div>\n<div class=\"lw-lab-data-card\"><span class=\"metric\">Cycle time<\/span><\/p>\n<h3>Fill, press and open phases<\/h3>\n<p>Each phase is timed at a fixed pressure. The cycle length is what converts a plant flow rate into the number of presses you need.<\/p>\n<\/div>\n<div class=\"lw-lab-data-card\"><span class=\"metric\">Resistance<\/span><\/p>\n<h3>Specific cake resistance<\/h3>\n<p>Filtrate volume is logged against time to derive specific resistance and compressibility \u2014 the two values that drive filtration area.<\/p>\n<\/div>\n<div class=\"lw-lab-data-card\"><span class=\"metric\">Clarity<\/span><\/p>\n<h3>Filtrate solids carry-over<\/h3>\n<p>Filtrate samples are checked for suspended solids to confirm the selected cloth actually holds the fines you are trying to capture.<\/p>\n<\/div>\n<div class=\"lw-lab-data-card\"><span class=\"metric\">Cloth<\/span><\/p>\n<h3>Release and blinding<\/h3>\n<p>Two or three cloths are run on the same slurry. Release, blinding and washing behaviour are compared side by side before a production cloth is fixed.<\/p>\n<\/div>\n<div class=\"lw-lab-data-card\"><span class=\"metric\">Dose<\/span><\/p>\n<h3>Conditioning response<\/h3>\n<p>Polymer or coagulant dose is varied across runs to find the level that balances cake release, clarity and chemical cost.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<p><\/p>\n<section class=\"lw-lab-sec tone\" id=\"cycle\">\n<div class=\"lw-sec-inner\">\n<h2>The Bench Cycle, Step by Step<span class=\"sub\">Four stages from sample to logged data<\/span><\/h2>\n<p class=\"lw-lead2\">The lab cycle mirrors a production press but each stage is small enough to watch, weigh and time by hand.<\/p>\n<div class=\"lw-lab-stepper\">\n<div class=\"st\">\n<div class=\"n\">Step 01<\/div>\n<h3>Prepare & condition<\/h3>\n<p>Mix the sample, condition it if the protocol calls for polymer, and load the feed tank. Cloth and chamber depth are chosen for the test objective.<\/p>\n<\/div>\n<div class=\"st\">\n<div class=\"n\">Step 02<\/div>\n<h3>Close & feed<\/h3>\n<p>Close the pack with the manual jack or the hydraulic unit, then feed at a controlled rate while filtrate is collected and timed.<\/p>\n<\/div>\n<div class=\"st\">\n<div class=\"n\">Step 03<\/div>\n<h3>Hold & press<\/h3>\n<p>Hold at the recipe pressure. Membrane squeeze or air blow can be switched on to measure the effect on residual moisture.<\/p>\n<\/div>\n<div class=\"st\">\n<div class=\"n\">Step 04<\/div>\n<h3>Open & measure<\/h3>\n<p>Open the pack, weigh and sample the cake, log filtrate volume and clarity, and export the run for the scale-up calculation.<\/p>\n<\/div>\n<\/div>\n<div class=\"lw-lab-cut\"><img decoding=\"async\" src=\"https:\/\/lowayequipment.com\/wp-content\/uploads\/2025\/12\/Lab-Pilot-Filter-Press-for-Precision-Filtration-for-RD-and-Small-Batch-Production-Loway.png\" alt=\"Cutaway of a Loway lab pilot filter press showing feed pump, plate pack, closing system and control cabinet on one bench frame\"><\/p>\n<div class=\"cap\">Cutaway of a Loway lab pilot press: feed pump, plate pack, closing system and control cabinet on one bench frame.<\/div>\n<\/div>\n<\/div>\n<\/section>\n<p><\/p>\n<section class=\"lw-lab-sec\" id=\"scale\">\n<div class=\"lw-sec-inner\">\n<h2>Pick the Bench Scale<span class=\"sub\">Lab-200 to Lab-630: match the chamber to the sample you actually have<\/span><\/h2>\n<p class=\"lw-lead2\">The limiting factor in a lab is usually how much slurry you can send, not how much space you have. Choose the model from the sample volume first, then from the cake you need to collect.<\/p>\n<div class=\"lw-lab-scale\">\n<div class=\"lw-lab-scale-list\">\n<div class=\"lw-lab-scale-row\">\n<div class=\"model\">Lab-200<\/div>\n<div class=\"meta\">200 × 200 mm · 0.1–0.5 m² · 1–3 L cake · manual jack · 5–20 L slurry per test<\/div>\n<div class=\"best\">Feasibility & cloth screening<\/div>\n<\/div>\n<div class=\"lw-lab-scale-row\">\n<div class=\"model\">Lab-320<\/div>\n<div class=\"meta\">320 × 320 mm · 0.5–2.0 m² · 5–15 L cake · manual jack · 20–60 L slurry per test<\/div>\n<div class=\"best\">Recipe development & QA<\/div>\n<\/div>\n<div class=\"lw-lab-scale-row\">\n<div class=\"model\">Lab-450<\/div>\n<div class=\"meta\">450 × 450 mm · 2.0–5.0 m² · 20–60 L cake · electric hydraulic · 60–200 L slurry per test<\/div>\n<div class=\"best\">Pilot campaigns<\/div>\n<\/div>\n<div class=\"lw-lab-scale-row\">\n<div class=\"model\">Lab-630<\/div>\n<div class=\"meta\">630 × 630 mm · 5.0–15 m² · 50–200 L cake · electric hydraulic · 200–600 L slurry per test<\/div>\n<div class=\"best\">Pilot to small-batch<\/div>\n<\/div>\n<\/div>\n<div class=\"lw-lab-scale-pic\">\n<div class=\"pic\"><img decoding=\"async\" src=\"https:\/\/lowayequipment.com\/wp-content\/uploads\/2025\/03\/%E4%B8%8D%E9%94%88%E9%92%A2%E6%9D%BF%E6%A1%86%E5%8E%8B%E6%BB%A4%E6%9C%BA2.jpg\" alt=\"Loway manual stainless steel lab filter press on casters with plate pack, hand wheel and feed pump\"><\/div>\n<div class=\"cap\">Manual stainless steel lab filter press on casters \u2014 the configuration most screening labs start with.<\/div>\n<\/div>\n<\/div>\n<p class=\"lw-lab-note\">Slurry volume per test is typical for feeds at 2–5% w\/w solids; dilute feeds need more volume to collect the same cake mass.<\/p>\n<\/div>\n<\/section>\n<p><\/p>\n<section class=\"lw-lab-sec tone\" id=\"specs\">\n<div class=\"lw-sec-inner\">\n<h2>Lab & Pilot Series Specifications<span class=\"sub\">Model data, dimensions and bench services<\/span><\/h2>\n<p class=\"lw-lead2\">Four sizes cover the jump from a beaker-scale screening run to a pilot campaign that produces saleable cake. All models run the same plate and cloth range, so a recipe developed on Lab-320 transfers to Lab-630.<\/p>\n<div class=\"lw-lab-specwrap\">\n<h3>Plate Size, Filtration Area and Cake Volume<\/h3>\n<table class=\"lw-lab-spec\">\n<thead>\n<tr>\n<th>Model<\/th>\n<th>Plate size (mm)<\/th>\n<th>Filter area (m²)<\/th>\n<th>Cake volume (L)<\/th>\n<th>Plate count<\/th>\n<th>Feed pressure (MPa)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Lab-200<\/td>\n<td>200 × 200<\/td>\n<td>0.1–0.5<\/td>\n<td>1–3<\/td>\n<td>5–10<\/td>\n<td>0.1–2.0<\/td>\n<\/tr>\n<tr>\n<td>Lab-320<\/td>\n<td>320 × 320<\/td>\n<td>0.5–2.0<\/td>\n<td>5–15<\/td>\n<td>7–16<\/td>\n<td>0.1–2.0<\/td>\n<\/tr>\n<tr>\n<td>Lab-450<\/td>\n<td>450 × 450<\/td>\n<td>2.0–5.0<\/td>\n<td>20–60<\/td>\n<td>10–25<\/td>\n<td>0.1–2.0<\/td>\n<\/tr>\n<tr>\n<td>Lab-630<\/td>\n<td>630 × 630<\/td>\n<td>5.0–15.0<\/td>\n<td>50–200<\/td>\n<td>12–36<\/td>\n<td>0.1–2.0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div class=\"lw-lab-specwrap\">\n<h3>Dimensions, Weight and Closing<\/h3>\n<table class=\"lw-lab-spec\">\n<thead>\n<tr>\n<th>Model<\/th>\n<th>Length (mm)<\/th>\n<th>Width (mm)<\/th>\n<th>Height (mm)<\/th>\n<th>Empty weight (kg)<\/th>\n<th>Feed pump<\/th>\n<th>Closing method<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Lab-200<\/td>\n<td>800<\/td>\n<td>400<\/td>\n<td>500<\/td>\n<td>120<\/td>\n<td>AODD<\/td>\n<td>Manual jack<\/td>\n<\/tr>\n<tr>\n<td>Lab-320<\/td>\n<td>1,200<\/td>\n<td>600<\/td>\n<td>800<\/td>\n<td>280<\/td>\n<td>AODD<\/td>\n<td>Manual jack<\/td>\n<\/tr>\n<tr>\n<td>Lab-450<\/td>\n<td>1,800<\/td>\n<td>700<\/td>\n<td>900<\/td>\n<td>520<\/td>\n<td>AODD \/ progressive cavity<\/td>\n<td>Electric hydraulic<\/td>\n<\/tr>\n<tr>\n<td>Lab-630<\/td>\n<td>2,500<\/td>\n<td>900<\/td>\n<td>1,100<\/td>\n<td>950<\/td>\n<td>AODD \/ progressive cavity<\/td>\n<td>Electric hydraulic<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"lw-lab-specnote\">Frame material: epoxy-coated carbon steel standard; SS304 or SS316L cladding optional. Plate material: PP, cast iron or stainless steel. CGR gasketed plates and membrane squeeze kits available from Lab-320 upward.<\/div>\n<\/div>\n<div class=\"lw-lab-specwrap\">\n<h3>Bench Services and Utilities<\/h3>\n<table class=\"lw-lab-spec\">\n<thead>\n<tr>\n<th>Model<\/th>\n<th>Power supply<\/th>\n<th>Compressed air<\/th>\n<th>Feed pump size<\/th>\n<th>Data capture<\/th>\n<th>Footprint (L × W)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Lab-200<\/td>\n<td>Single-phase 220 V (pump options only)<\/td>\n<td>0.3–0.6 m³\/min<\/td>\n<td>AODD 1\/2″<\/td>\n<td>Gauge & timer, optional transducer<\/td>\n<td>0.8 × 0.4 m<\/td>\n<\/tr>\n<tr>\n<td>Lab-320<\/td>\n<td>Single-phase 220 V (pump options only)<\/td>\n<td>0.4–0.8 m³\/min<\/td>\n<td>AODD 3\/4″<\/td>\n<td>Gauge & timer, optional transducer<\/td>\n<td>1.2 × 0.6 m<\/td>\n<\/tr>\n<tr>\n<td>Lab-450<\/td>\n<td>Three-phase 380 V, 1.5 kW<\/td>\n<td>0.6–1.2 m³\/min<\/td>\n<td>AODD 1″ \/ PC pump<\/td>\n<td>PLC with pressure logging<\/td>\n<td>1.8 × 0.7 m<\/td>\n<\/tr>\n<tr>\n<td>Lab-630<\/td>\n<td>Three-phase 380 V, 2.2 kW<\/td>\n<td>0.8–1.6 m³\/min<\/td>\n<td>AODD 1½” \/ PC pump<\/td>\n<td>PLC + HMI with USB export<\/td>\n<td>2.5 × 0.9 m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"lw-lab-specnote\">Manual jack models need no electrical supply for closing; the feed pump is air driven. Electric hydraulic models hold closing pressure automatically and log it with the cycle data. Progressive-cavity pumps are electrically driven and used where a steady, low-shear feed is required.<\/div>\n<\/div>\n<\/div>\n<\/section>\n<p><\/p>\n<section class=\"lw-lab-sec\" id=\"closing\">\n<div class=\"lw-sec-inner\">\n<h2>Manual Jack or Electric Hydraulic?<span class=\"sub\">Two closing options, matched to how often you test<\/span><\/h2>\n<p class=\"lw-lead2\">Closing force is the one variable an operator can change between runs. Pick the method that keeps it consistent for the way you work.<\/p>\n<div class=\"lw-lab-cmp\">\n<div class=\"lw-lab-cmp-col\">\n<h3>Manual jack<\/h3>\n<div class=\"for\">Lab-200 \/ Lab-320<\/div>\n<ul>\n<li>Hand-operated closing with a mechanical jack; no electrical supply needed for closing<\/li>\n<li>Clamping force set by the operator and read on the gauge at the start of each run<\/li>\n<li>Simple to teach, simple to maintain, and the lightest unit to move between benches<\/li>\n<li>Specified for occasional screening, teaching labs and one-off feasibility trials<\/li>\n<\/ul>\n<\/div>\n<div class=\"lw-lab-cmp-col\">\n<h3>Electric hydraulic<\/h3>\n<div class=\"for\">Lab-450 \/ Lab-630<\/div>\n<ul>\n<li>Push-button closing with automatic pressure holding through long cycles<\/li>\n<li>Identical closing force run to run, so recipe and SOP data stay comparable<\/li>\n<li>Interlocked with the feed pump and safety relief; closing pressure is logged with the cycle<\/li>\n<li>Specified for repeatable recipe development, long cycles and pressures up to 2.0 MPa<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<p><\/p>\n<section class=\"lw-lab-sec tone\" id=\"materials\">\n<div class=\"lw-sec-inner\">\n<h2>Materials and Cloth Screening<span class=\"sub\">What to test when the sample is aggressive, hot or food-grade<\/span><\/h2>\n<p class=\"lw-lead2\">A bench unit is the cheapest place to find out that a plate material or a cloth does not survive your slurry. Screening both on the same frame costs one shipment.<\/p>\n<div class=\"lw-lab-specwrap\">\n<table class=\"lw-lab-spec\">\n<thead>\n<tr>\n<th>Plate \/ wetted material<\/th>\n<th>Specified for<\/th>\n<th>Temperature limit<\/th>\n<th>Bench note<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Polypropylene (PP)<\/td>\n<td>General aqueous sludges, acids and alkalis to pH 1–14<\/td>\n<td>≤80 °C<\/td>\n<td>Lightest plates; easy for one person to open and clean between runs<\/td>\n<\/tr>\n<tr>\n<td>Cast iron<\/td>\n<td>Abrasive mineral slurries and higher-pressure work<\/td>\n<td>≤100 °C<\/td>\n<td>Heavier pack; chosen where plate wear, not corrosion, is the concern<\/td>\n<\/tr>\n<tr>\n<td>SS304 cladding & plates<\/td>\n<td>Food, beverage and general hygiene duties<\/td>\n<td>≤120 °C<\/td>\n<td>Common for edible oil, juice and fermentation broth trials<\/td>\n<\/tr>\n<tr>\n<td>SS316L cladding & plates<\/td>\n<td>Pharma, API, aggressive chlorides and solvents<\/td>\n<td>≤120 °C<\/td>\n<td>Sanitary finish and crevice-free welds for validated cleaning<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"lw-lab-specnote\">Cloth screening: PP, PET, polyamide and PTFE-blend cloths are run on the same slurry and compared for release, blinding and filtrate clarity before a production cloth is specified. Filter paper and membrane pads are used for polishing trials on low-solids feeds.<\/div>\n<\/div>\n<\/div>\n<\/section>\n<p><\/p>\n<section class=\"lw-lab-sec\" id=\"scaleup\">\n<div class=\"lw-sec-inner\">\n<h2>From Bench Data to a Production Press<span class=\"sub\">How one test becomes a sized quotation<\/span><\/h2>\n<p class=\"lw-lead2\">The point of a lab run is the calculation that follows it. Each measurement feeds a specific line of the production sizing sheet.<\/p>\n<div class=\"lw-lab-specwrap\">\n<table class=\"lw-lab-spec\">\n<thead>\n<tr>\n<th>Lab measurement<\/th>\n<th>What it decides<\/th>\n<th>What Loway delivers<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Cake moisture vs pressure<\/td>\n<td>Target dryness, and whether a membrane squeeze stage earns its cost<\/td>\n<td>Recommended plate type and squeeze option<\/td>\n<\/tr>\n<tr>\n<td>Filtrate volume vs time<\/td>\n<td>Specific resistance and cake compressibility<\/td>\n<td>Calculated filtration area for the plant duty<\/td>\n<\/tr>\n<tr>\n<td>Cycle phase times<\/td>\n<td>Cycles per shift and total installed area<\/td>\n<td>Number and size of production presses<\/td>\n<\/tr>\n<tr>\n<td>Filtrate clarity<\/td>\n<td>Cloth specification, and whether a polishing stage is needed<\/td>\n<td>Cloth recommendation and polishing configuration<\/td>\n<\/tr>\n<tr>\n<td>Conditioning dose response<\/td>\n<td>Polymer or coagulant consumption per tonne of dry solids<\/td>\n<td>Operating cost estimate for the full-scale line<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"lw-lab-note\">Send the sample, the solids content and the target cake dryness. The bench run and the scale-up calculation are done on the same unit, and both are included with the production quotation.<\/p>\n<div class=\"lw-lab-cycle-cta\"><a class=\"lw-btn-primary\" href=\"\/engineering\/sludge-testing\/\">Send Your Sample for a Bench Test<\/a><\/div>\n<\/div>\n<\/section>\n<p><\/p>\n<section class=\"lw-lab-sec tone\" id=\"apps\">\n<div class=\"lw-sec-inner\">\n<h2>Where Bench Presses Are Used<span class=\"sub\">R&D, QA and small-batch duties<\/span><\/h2>\n<div class=\"lw-lab-apps4\"><a class=\"lw-lab-card\" href=\"\/industry-applications\/\"><\/p>\n<div class=\"pic\"><img decoding=\"async\" src=\"https:\/\/lowayequipment.com\/wp-content\/uploads\/2025\/03\/%E4%B8%8D%E9%94%88%E9%92%A2%E6%9D%BF%E5%BC%8F%E8%BF%87%E6%BB%A4loway.png\" alt=\"Loway stainless steel plate filter press for pharmaceutical and fine chemical polishing trials\"><\/div>\n<div class=\"body\">\n<h3>Pharma & Fine Chemicals<\/h3>\n<p>API and intermediate polishing on SS316L contact parts, with CGR plates and paper polishing trials for high-purity filtrate.<\/p>\n<\/div>\n<p><\/a><a class=\"lw-lab-card\" href=\"\/industry-applications\/\"><\/p>\n<div class=\"pic\"><img decoding=\"async\" src=\"https:\/\/lowayequipment.com\/wp-content\/uploads\/2025\/07\/filter-press-for-beer-proces-loway-dewatering-equipment-food-industry.png\" alt=\"Loway stainless steel filter press in a food and beverage trial line for beer, edible oil and juice\"><\/div>\n<div class=\"body\">\n<h3>Food & Beverage<\/h3>\n<p>Recipe trials for beer, edible oil, juice and fermentation broths with sanitary cladding and squeeze options.<\/p>\n<\/div>\n<p><\/a><a class=\"lw-lab-card\" href=\"\/industry-applications\/\"><\/p>\n<div class=\"pic\"><img decoding=\"async\" src=\"https:\/\/lowayequipment.com\/wp-content\/uploads\/2024\/12\/petrochemical-complex-and-storage-tanks.jpg\" alt=\"Petrochemical complex and storage tanks where lab presses test refinery and chemical samples\"><\/div>\n<div class=\"body\">\n<h3>Chemical & Petrochemical<\/h3>\n<p>Feasibility testing of refinery sludge and chemical precipitates before plant design, on corrosion-resistant wetted parts.<\/p>\n<\/div>\n<p><\/a><a class=\"lw-lab-card\" href=\"\/industry-applications\/\"><\/p>\n<div class=\"pic\"><img decoding=\"async\" src=\"https:\/\/lowayequipment.com\/wp-content\/uploads\/2026\/09\/loway-equipment-lab-for-sludge-testing.png\" alt=\"Loway laboratory with benches, glassware and sample bottles used for sludge characterization\"><\/div>\n<div class=\"body\">\n<h3>Labs & Universities<\/h3>\n<p>Teaching separation principles and characterising new slurries, with manual operation that keeps training safe and visible.<\/p>\n<\/div>\n<p><\/a><\/div>\n<\/div>\n<\/section>\n<p><\/p>\n<section class=\"lw-lab-sec\" id=\"faq\">\n<div class=\"lw-sec-inner\">\n<h2>Frequently Asked Questions<\/h2>\n<div class=\"lw-lab-faqs\">\n<details>\n<summary>Q1. How much slurry do I need to send for a bench test?<\/summary>\n<div class=\"ans\">\n<p>About 5–20 L for a Lab-200 screening run and 20–60 L for a Lab-320 recipe run, depending on solids concentration and how much cake you want to collect. If the sample is genuinely limited, a Lab-200 run can be done on a smaller volume with fewer pressure steps.<\/p>\n<\/div>\n<\/details>\n<details>\n<summary>Q2. Can one bench test really size a production press?<\/summary>\n<div class=\"ans\">\n<p>Yes, for area and cycle time, provided the same cloth, pressure and conditioning are used. Loway runs the scale-up calculation from the logged data and includes it with the quotation, so the sizing comes from measurement rather than an estimate.<\/p>\n<\/div>\n<\/details>\n<details>\n<summary>Q3. Which cloth should I test?<\/summary>\n<div class=\"ans\">\n<p>Two or three cloths are normally screened on the same slurry \u2014 PP, PET or polyamide \u2014 and compared for cake release, blinding and filtrate clarity. The production cloth is then specified from that comparison rather than from a catalogue.<\/p>\n<\/div>\n<\/details>\n<details>\n<summary>Q4. Manual jack or electric hydraulic \u2014 which do I need?<\/summary>\n<div class=\"ans\">\n<p>Manual jack suits occasional screening and teaching, and needs no three-phase supply. Electric hydraulic is specified for repeatable recipe development, long cycles and pressures up to 2.0 MPa, where closing force has to be identical from run to run.<\/p>\n<\/div>\n<\/details>\n<details>\n<summary>Q5. What materials can I test if the sample is aggressive or food-grade?<\/summary>\n<div class=\"ans\">\n<p>Plates and wetted parts can be PP, cast iron, SS304 or SS316L. Aggressive chlorides and pharma work usually go to SS316L with a sanitary finish; food and beverage trials run on SS304; general aqueous sludges run on epoxy-coated carbon steel with PP plates.<\/p>\n<\/div>\n<\/details>\n<details>\n<summary>Q6. What do I receive after the test?<\/summary>\n<div class=\"ans\">\n<p>A data sheet with cake moisture at each pressure, cycle phase times, filtrate clarity and the derived filtration resistance, plus a cloth recommendation and, on request, the production scale-up calculation.<\/p>\n<\/div>\n<\/details>\n<\/div>\n<\/div>\n<\/section>\n<p><\/p>\n<section class=\"lw-lab-cta\" id=\"quote\">\n<div class=\"lw-sec-inner\">\n<div>\n<h2>Send a Sample, Get a Sized Quotation<\/h2>\n<p>Share the sample type, available volume, solids content and target cake dryness. Loway will recommend a Lab-200\/320\/450\/630 configuration, run the bench test if you send material, and return the scale-up calculation with the quotation.<\/p>\n<\/div>\n<div class=\"btnbox\"><a class=\"lw-btn-primary\" href=\"\/engineering\/sludge-testing\/\">Send Your Sample for a Bench Test<\/a><a class=\"lw-btn-ghost\" href=\"\/contact-us\/?topic=lab-quote\">Request a Lab Quotation<\/a><\/p>\n<div class=\"meta\">Bench-test report in 5 working days · quotation in 1–2 working days · scale-up calculation included<\/div>\n<\/div>\n<\/div>\n<\/section>\n<p><\/p>\n<section class=\"lw-lab-sec\" id=\"related\">\n<div class=\"lw-sec-inner\">\n<h2>Related Platforms<span class=\"sub\">Where the bench data takes you next<\/span><\/h2>\n<p class=\"lw-lead2\">When the scale-up calculation points to production, mobile or polishing duties, these platforms are the natural next step.<\/p>\n<div class=\"lw-lab-related\"><a href=\"\/filter-presses\/recessed-chamber-filter-press\/\"><\/p>\n<div class=\"pic\"><img decoding=\"async\" src=\"https:\/\/lowayequipment.com\/wp-content\/uploads\/2025\/05\/Slurry-filter-press-loway-equipment.png\" alt=\"Loway recessed chamber filter press, complete unit with clothed plate pack on the factory floor\"><\/div>\n<div class=\"body\">\n<h3>Chamber Filter Press<\/h3>\n<p>Recessed-plate dewatering on cloth \u2014 the workhorse for mining tailings and chemical slurries.<\/p>\n<div class=\"go\">View →<\/div>\n<\/div>\n<p><\/a><a href=\"\/filter-presses\/membrane-filter-press\/\"><\/p>\n<div class=\"pic\"><img decoding=\"async\" src=\"https:\/\/lowayequipment.com\/wp-content\/uploads\/2025\/06\/Loway-filter-press-membrane.png\" alt=\"Loway membrane filter press with PLC cabinet and hydraulic station\"><\/div>\n<div class=\"body\">\n<h3>Membrane Filter Press<\/h3>\n<p>Secondary squeeze for the driest cake in the filter press family.<\/p>\n<div class=\"go\">View →<\/div>\n<\/div>\n<p><\/a><a href=\"\/filter-presses\/mobile-filter-press\/\"><\/p>\n<div class=\"pic\"><img decoding=\"async\" src=\"https:\/\/lowayequipment.com\/wp-content\/uploads\/2026\/09\/skid-mounted-filter-press-in-loway-equipment-factory.png\" alt=\"Loway skid-mounted mobile filter press on the factory floor\"><\/div>\n<div class=\"body\">\n<h3>Mobile Filter Press<\/h3>\n<p>On-site dewatering on a transportable skid for remote sites and rental fleets.<\/p>\n<div class=\"go\">View →<\/div>\n<\/div>\n<p><\/a><a href=\"\/filter-presses\/plate-frame-filter-press\/\"><\/p>\n<div class=\"pic\"><img decoding=\"async\" src=\"https:\/\/lowayequipment.com\/wp-content\/uploads\/2025\/06\/plate-and-frame-filter-press-working.png\" alt=\"Loway plate and frame filter press for fine filtration and polishing\"><\/div>\n<div class=\"body\">\n<h3>Plate & Frame Filter Press<\/h3>\n<p>Fine filtration and polishing with paper, cloth and membrane pads for low-solids feeds.<\/p>\n<div class=\"go\">View →<\/div>\n<\/div>\n<p><\/a><\/div>\n<\/div>\n<\/section>\n<div class=\"lw-lab-cb\" aria-hidden=\"true\" style=\"height:72px;background:#fff\"><\/div>\n<\/div>\n<p><\/body><\/html><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Lab & Pilot Filter Press | Bench Trials & Scale-Up Data | Loway Equipment Lab & Pilot Filter Press · Bench Trials & Scale-Up Lab Filter Press for Bench Trials and Pilot Scale-Up Run the same batch pressure filtration as a production press, on five litres instead of fifty cubic metres. Loway lab units turn […]<\/p>\n","protected":false},"author":1,"featured_media":887,"parent":340,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-396","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\n<title>Lab Filter Press | Bench-Top & Pilot Testing | Loway<\/title>\n<meta name=\"description\" content=\"Lab filter presses for R&D, quality control and pilot studies. Chamber volumes from 1 L, SS304\/316L or PP plate options.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lowayequipment.com\/id\/filter-presses\/lab-filter-press\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Lab Filter Press | Bench-Top & Pilot Testing | Loway\" \/>\n<meta property=\"og:description\" content=\"Lab filter presses for R&D, quality control and pilot studies. 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