250L–1000L production platform
Core models 250L / 350L / 500L share one control logic and one spare-parts kit; 650L and 1000L extend the same platform for higher daily output.
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Vacuum Emulsifying Mixer (Industry Grade Large) — 250L / 350L / 500L Production Units for Cosmetic, Pharmaceutical & Food Emulsion Lines
Vacuum Emulsifying Mixer (Industry Grade Large) — 250L / 350L / 500L Production Units for Cosmetic, Pharmaceutical & Food Emulsion Lines
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The MAXWELL Industry Grade Large vacuum emulsifying mixer is the production-scale member of the VEM family, built for factories that run cosmetic creams, lotions, ointments, toothpaste and pharmaceutical emulsions in daily volume. The 250L, 350L and 500L units combine a 3000 rpm high-shear homogenizer, a 10–120 rpm scraper agitator and a −0.09 MPa vacuum chamber in one three-pot GMP-grade system — and scale up to 1000 L on the same platform.
Parameter
Model:
：
VWM 250L / 350L / 500L
Volume:
：
250 350 500
Speed:
：
10 – 120 (variable frequency drive),
Vacuum level:
：
3000 (fixed),10 – 120 (variable frequency drive),1500
Material:
：
SUS304 / SUS316L stainless steel (customizable; special spraying materials optional)
Power:
：
1.5 2.2 3
Price:
：
Negotiate based on the actual situation
Product Introduction
250L–1000LIndustry Grade Large
3000 rpmHomogenizer speed
10–120 rpmScraper speed
−0.09 MPaVacuum level
2 – 6 µmParticle fineness
SUS316LContact material
50,000 cpMax viscosity
CE / GMPCompliance
Why choose the MAXWELL vacuum emulsifying mixer
The Industry Grade Large series is built for buyers who need pharmaceutical-grade emulsion quality at production throughput, not lab-scale trial batches. Every system ships from the Wuxi, Jiangsu factory, has a CE / GMP-compliant three-layer stainless steel pot, and is backed by a 1-year warranty plus engineer-on-call support. (For 2L–150L R&D and pilot units, see our laboratory vacuum mixer range — this page deliberately focuses on the 250L–1000L production line.)
Medical-grade SUS316L contact
All material-contacting surfaces in SUS316L; outer jackets in SUS304-2B. Mirror-polished to Ra ≤ 0.4 µm for GMP audits.
3000 rpm high-shear homogenizer
Rotor–stator head drives particle size down to 2 – 6 µm in under 10 minutes for most formulations.
Vacuum sealed processing
−0.09 MPa vacuum transfers oil & water phases into the main pot, eliminating air contamination and post-batch de-foaming.
Hydraulic lifting cover
Cover lifts automatically for full access during cleaning, batch changeover and CIP cycles — operator-safe and GMP-friendly.
PLC or button control
Choose button panels for simple recipes, or Siemens / Mitsubishi PLC with HMI touch screen for full recipe management.
Two heating options
Electric heating via thermal oil jacket (≤ 500 L) or steam heating (≥ 500 L) with PID auto-temperature control and built-in cooling loop.
Global shipping & local service
Fumigation-free wooden case, sea-worthy packaging. Remote video commissioning included; on-site engineer dispatch available worldwide.
Industry Grade Large specifications — 250L, 350L, 500L & up to 1000L
This page documents the production-scale vacuum emulsifying mixer. MAXWELL builds the Industry Grade Large line in 250L, 350L, 500L, 650L and 1000L working capacities; the 250L / 350L / 500L trio is the most-specified configuration for cosmetic, toothpaste and ointment factories. A separate laboratory & pilot range (5L–150L) covers R&D and small-batch needs. Specifications below are reproduced from the MAXWELL datasheet; OEM/ODM deviation is available on request.
Industry Grade Large — 250L / 350L / 500L (and 650L / 1000L)
The 250L, 350L and 500L units are the most-specified Industry Grade Large configurations for cosmetic cream, lotion, toothpaste and ointment production. Use the motor-power columns below to size the homogenizer and scraper drive to your batch weight and viscosity.
| Item / Type (L) | 250 | 350 | 500 | 650 | 1000 |
|---|---|---|---|---|---|
| Emulsifying Pot — Design Volume (L) | 250 | 350 | 500 | 650 | 1000 |
| Emulsifying Pot — Working Capacity (L) | 200 | 280 | 400 | 520 | 800 |
| Emulsifying Pot — Scraper Power (kW) | 1.5 | 2.2 | 3 | 3 | 7.5 |
| Emulsifying Pot — Scraper Speed (rpm) | 10 – 120 (variable frequency drive) | ||||
| Emulsifying Pot — Homogenizing Power (kW) | 4 | 5.5 | 7.5 | 7.5 | 11 |
| Emulsifying Pot — Homogenizing Speed (rpm) | 3000 (fixed) | ||||
| Water Pot — Design Volume (L) | 130 | 170 | 300 | 400 | 600 |
| Water Pot — Working Capacity (L) | 100 | 130 | 250 | 320 | 480 |
| Water Pot — Stirring Power (kW) | 0.75 | 0.75 | 1.1 | 1.1 | 1.5 |
| Water Pot — Stirring Speed (rpm) | 1500 | ||||
| Oil Pot — Design Volume (L) | 130 | 200 | 250 | 300 | 500 |
| Oil Pot — Working Capacity (L) | 100 | 160 | 200 | 240 | 800 |
| Oil Pot — Stirring Power (kW) | 0.75 | 0.75 | 1.1 | 1.1 | 1.5 |
| Oil Pot — Stirring Speed (rpm) | 1500 | ||||
Laboratory & pilot range (5 L to 150 L) — also available
For R&D, formulation trials and small-batch private-label runs, MAXWELL also builds the same three-pot emulsifier in 5L, 10L, 30L, 50L, 100L and 150L. See the laboratory vacuum emulsifying mixer range for full pilot-scale data.
| Item / Type (L) | 5 | 10 | 30 | 50 | 100 | 150 |
|---|---|---|---|---|---|---|
| Emulsifying Pot — Design Volume (L) | 6 | 12 | 35 | 63 | 120 | 165 |
| Emulsifying Pot — Working Capacity (L) | 5 | 10 | 30 | 50 | 100 | 150 |
| Emulsifying Pot — Scraper Power (kW) | 0.18 | 0.18 | 0.75 | 0.75 | 1.1 | 1.1 |
| Emulsifying Pot — Scraper Speed (rpm) | 10 – 120 (variable frequency drive) | |||||
| Emulsifying Pot — Homogenizing Power (kW) | 0.55 | 0.55 | 1.5 | 1.5 | 3 | 3 |
| Emulsifying Pot — Homogenizing Speed (rpm) | 3000 (fixed) | |||||
| Water Pot — Design Volume (L) | 3 | 6 | 20 | 35 | 70 | 95 |
| Water Pot — Working Capacity (L) | 2.5 | 5 | 17 | 28 | 60 | 85 |
| Water Pot — Stirring Power (kW) | 0.015 | 0.015 | 0.18 | 0.37 | 0.55 | 0.55 |
| Water Pot — Stirring Speed (rpm) | 1500 | |||||
| Oil Pot — Design Volume (L) | 3 | 6 | 15 | 20 | 50 | 70 |
| Oil Pot — Working Capacity (L) | 2.5 | 5 | 13 | 22 | 40 | 65 |
| Oil Pot — Stirring Power (kW) | 0.015 | 0.015 | 0.18 | 0.37 | 0.55 | 0.55 |
| Oil Pot — Stirring Speed (rpm) | 1500 | |||||
Shared parameters across all 11 models
| Parameter | Value |
|---|---|
| Working vacuum | −0.09 MPa |
| Fineness | 2 – 6 µm |
| Contact material | SUS316L stainless steel (medical grade) |
| Jacket / outer material | SUS304/SUS316L stainless steel |
| Heating method | Electric heating (thermal oil) for ≤500 L; steam heating optional for ≥250 L; both available on request |
| Cooling | Chilled water circulation through jacket |
| Lifting system | Hydraulic lifting of emulsifying pot cover |
| Discharge method | Bottom valve discharge or tilting-type discharge |
| Control system | Button panel standard; PLC touch screen optional (Siemens / Delta / Mitsubishi) |
| Voltage | AC 380 V / 3 PH / 50 Hz (customizable to 220 V, 415 V, 440 V, 480 V) |
| Power supply brand | Siemens / ABB motors; Delta / Mitsubishi inverters |
| Surface finish | Mirror polished to GMP, Ra ≤ 0.4 µm inside the contact layer |
| Hygiene standard | GMP-compliant; CE / SGS audited |
| Warranty | 1 year (extendable to 3 years) |
| Delivery time | 30–40 days after deposit |
| Packaging | Fumigation-free wooden case with stretch wrap; export-standard |
Which capacity do you need — 250L, 350L or 500L?
Selecting the right Industry Grade Large size is mostly a function of daily batch count and fill weight per unit. The table below is a practical starting point; MAXWELL engineers will confirm the final size against your recipe viscosity and filling speed.
| Model | Working capacity | Typical daily output* | Best fit |
|---|---|---|---|
| VEM-250 | 200 L / batch | 1.0 – 1.6 t | Start-ups, private-label trials, single-SKU lines |
| VEM-350 | 280 L / batch | 1.4 – 2.2 t | Growing cosmetic / toothpaste brands, 2–3 SKUs |
| VEM-500 | 400 L / batch | 2.0 – 3.2 t | Established OEM/ODM factories, contract manufacturing |
| VEM-650 / 1000 | 520 / 800 L | 2.6 – 5.0 t | High-volume lines, regional export supply |
*Assumes 2–3 batches per 8-hour shift, 300 working days/year, 80% yield. Indicative only — confirm with MAXWELL based on your actual cycle time.
Buyers commonly step from a 250L to a 500L Industry Grade Large unit when daily demand crosses roughly 2 tonnes of finished emulsion — at that point the larger homogenizer (7.5 kW vs 4 kW) and wider scraper (3 kW vs 1.5 kW) shorten cycle time enough to avoid adding a second shift.
How the vacuum emulsifying mixer works
The MAXWELL mixer runs a four-stage process inside a sealed vacuum chamber. Understanding the sequence helps buyers match the machine to their recipe viscosity, batch size and required particle size.
Pre-mix (water & oil pots). Water-soluble ingredients are charged to the water pot and oil-soluble ingredients to the oil pot. Both pots are heated and stirred at 1500 rpm to fully dissolve solids (e.g. AES, AESA, LSA) before emulsification.
Vacuum transfer. The pre-mixed water phase and oil phase are drawn into the main emulsifying pot through the vacuum pipeline. Because the chamber holds −0.09 MPa, air is excluded from the entire transfer — no manual pouring, no foam generation.
Scraper agitation. An anchor-style scraper with PTFE blades sweeps the inner wall at 10–120 rpm (VFD-controlled). Residues on the wall are continuously wiped back into the bulk, so heat transfer through the jacket stays uniform.
High-shear homogenization. The bottom-emersion rotor–stator head runs at 3000 rpm, cutting, compressing and folding the emulsion until particle size drops to 2 – 6 µm. Bubbles that form are pulled out instantly by the vacuum, so the finished batch is glossy, air-free and aseptic.
According to the MAXWELL specification sheet, the full emulsification cycle typically completes in under 10 minutes once the raw materials are pre-mixed — a key throughput metric for cosmetic and pharmaceutical buyers comparing capital cost per batch.
Three-pot system design
The MAXWELL mixer physically separates raw-material pre-treatment from the main emulsification pot. This keeps the main vessel clean, cuts cycle time, and lets operators swap colour or fragrance batches in minutes rather than hours.
1 · Emulsifying pot (main vessel)
Three-layer stainless-steel pot body: inner SUS316L contact shell, middle jacket for heating/cooling, outer SUS304-2B shell. The cover lifts hydraulically for full opening. Inside, an anchor scraper with PTFE wiper blades runs the perimeter while a bottom-emersed high-shear homogenizer handles the fine dispersion.
2 · Water-phase pre-mix pot
Typically 60% of the working batch volume, water-soluble surfactants, thickeners, glycerin and actives are pre-dissolved here at up to 1500 rpm and 95 °C before vacuum transfer.
3 · Oil-phase pre-mix pot
Around 40% of the working batch volume, oils, waxes, esters and oil-soluble actives are heated to 80–95 °C and stirred gently to ensure homogeneity before being drawn into the main emulsifying pot.
Control panel & CIP-ready design
Industries and applications
The MAXWELL vacuum emulsifying mixer is engineered for any process that requires de-aerated, fine-particle emulsions. The categories below are the most common end uses — the same platform is used by cosmetics labs, toothpaste contract manufacturers, pharma ointment lines and food sauce producers.
| Industry | Common products made on this machine |
|---|---|
| Personal care & cosmetics | Skin cream, body lotion, facial serum, BB cream, sunscreen, cleansing gel, scrub cream, eye gel, neck cream, hand sanitizer, shower gel, bubble bath, sugar scrub, baby lotion, moisturizing emulsion |
| Hair care | Shampoo, conditioner, hair mask, hair dye, leave-in treatment, styling cream |
| Oral care | Toothpaste, dental cream, mouthwash, oral gel |
| Pharmaceutical & ointment | Ointment base, gel, topical cream, syrup suspension, antibiotic cream, hormone cream, sterilized emulsion |
| Food & condiment | Mayonnaise, salad dressing, Thousand Island sauce, ketchup, tomato paste, peanut butter, chili sauce, honey blends, dairy cream, juice concentrate, custard |
| Fine chemical | Lubricating grease, inkjet ink, pigment dispersion, wax emulsion, agrochemical suspension, detergent, fabric softener |
According to industry technical literature, a vacuum emulsifying mixer is the standard equipment of choice for any cream where the buyer specification calls for a particle size below 5 µm and a bubble-free, glossy finish — two requirements that atmospheric high-shear mixers cannot reliably meet.
Customization options (OEM / ODM)
MAXWELL offers free configuration support for OEM/ODM buyers. The table below lists the most-frequent deviation points — all are quoted per RFQ.
| Configuration | Standard | Available options |
|---|---|---|
| Capacity | 5L – 1000L (11 models) | 100L – 5000L custom; multiple parallel lines |
| Voltage | AC 380 V / 3 PH / 50 Hz | 220 V, 415 V, 440 V, 480 V, 60 Hz |
| Control | Button panel | Siemens / Delta / Mitsubishi PLC + HMI touch screen |
| Heating | Electric (thermal oil) | Steam heating; thermal-oil + steam dual; induction |
| Homogenizer head | Bottom-mounted, 3000 rpm | Inverted (top-mounted); bottom + side dual head; in-line external homogenizer loop |
| Discharge | Bottom valve | Tilting type; transfer pump; bottom + side dual |
| Cover lifting | Hydraulic | Manual (≤ 30L); pneumatic; electric |
| CIP | Optional | Built-in CIP spray ball; separate CIP skid |
| Materials | SUS304 + SUS316L | Full SUS316L; PTFE-lined; Hastelloy for aggressive chemicals |
| Documentation | English manual, electrical drawing | Pneumatic drawing, P&ID, IQ / OQ / PQ validation pack for pharma buyers |
| Branding | MAXWELL logo | OEM with buyer's logo and colour scheme |
Quality & certifications
MAXWELL equipment is designed and manufactured to be audit-ready for EU, U.S. and ASEAN buyers. Standard certifications are reproduced on the main product nameplate shown above.
CE — European conformity for electrical safety and EMC
GMP — Good Manufacturing Practice hygiene design (sanitary tubing, drainability, Ra finish)
SGS — third-party audited supplier on multiple platforms
Verified supplier — audited business-license supplier on Made-in-China and Alibaba
Stainless-steel traceability (mill certificates available per batch)
Final FAT (factory acceptance test) video shipped to buyer before dispatch
For U.S. pharmaceutical buyers, IQ / OQ / PQ documentation, FDA-compliant elastomers and a 316L-only contact surface are available as an add-on pack.
Vacuum emulsifying mixer vs other mixer types
The table below maps the MAXWELL vacuum emulsifying mixer against three commonly-substituted mixer designs. It is intended to help procurement teams choose the right category before asking for a price.
| Feature | MAXWELL Vacuum Emulsifying Mixer | Atmospheric high-shear mixer | Paddle / anchor agitator | Static (in-line) mixer |
|---|---|---|---|---|
| Vacuum chamber | Yes (−0.09 MPa) | No | No | No |
| Homogenizing speed | 3000 rpm | 3000+ rpm | N/A | N/A |
| Typical particle size | 2 – 6 µm | 1 – 10 µm | Coarse / mm range | Coarse |
| Max viscosity | ≈ 50,000 cp | ≈ 10,000 cp | ≈ 5,000 cp | Low viscosity only |
| Aeration control | Vacuum removes bubbles | Traps air | Traps air | Traps air |
| Pre-mix pot | Yes (oil + water) | Optional | No | No |
| GMP compliant | Yes | Limited | No | Limited |
| Best fit | Creams, lotions, ointments, toothpaste | Liquid detergents, paints | Bulk liquids, syrups | Continuous low-viscosity blending |
| Indicative price (300 L) | US$ 15,000 – 65,000 | US$ 5,000 – 18,000 | US$ 2,000 – 8,000 | US$ 1,500 – 6,000 |
Frequently asked questions
What is a vacuum emulsifying mixer used for?
A vacuum emulsifying mixer is used to manufacture high-quality creams, lotions, ointments, gels, toothpastes and similar viscous emulsions under vacuum (−0.09 MPa). The vacuum removes air bubbles during mixing, producing a smooth, stable and aseptic emulsion with particle sizes between 6 nm and 2 µm. It is widely used in cosmetics, pharmaceuticals, food and chemical industries.
What capacity range does the Industry Grade Large vacuum emulsifying mixer cover?
The Industry Grade Large line covers 250L, 350L, 500L, 650L and 1000L working capacity — the 250L, 350L and 500L units are the core models for cosmetic, toothpaste and ointment factories. MAXWELL also builds a separate laboratory & pilot range (5L to 150L) for R&D, and custom capacities up to 5000L are available on request.
What materials are the contact parts made of?
All product-contact surfaces are manufactured from SUS316L stainless steel (medical grade) as standard. The outer jacket layers use SUS304-2B. Both interior surfaces are mirror polished to meet GMP hygiene standards.
What is the homogenizer speed and particle size?
The high-shear homogenizer runs at up to 3000 rpm. Combined with the rotor–stator shear head, particle size is reduced to between 6 nm and 2 µm, suitable for pharmaceutical-grade and cosmetic-grade emulsions.
How does the vacuum system prevent air contamination?
The emulsifying pot operates at −0.09 MPa. Raw materials from the water-phase and oil-phase pre-mix tanks are drawn into the main emulsifying pot through vacuum transfer pipelines, so air is excluded from the entire processing cycle. Bubbles generated during homogenization are continuously removed, yielding a defect-free, glossy, aseptic finished product.
What heating methods are available?
Two heating options are available: (1) electric heating through heat-conducting oil in the jacket, with a temperature range from ambient to 160 °C and PID auto-control; (2) steam heating through the jacket for larger capacities, typically used above 500L. Cooling is achieved by circulating chilled water in the same jacket.
What is the difference between a vacuum emulsifying mixer and a high-shear mixer?
A high-shear mixer focuses only on rotor–stator shearing at atmospheric pressure and handles viscosities up to about 10,000 cp. A vacuum emulsifying mixer combines an anchor scraper (10–120 rpm), a high-shear homogenizer (3000 rpm), and a vacuum chamber (−0.09 MPa) in one GMP-grade vessel, handling viscosities up to 50,000 cp and producing finer, de-aerated, pharmaceutical-grade emulsions.
Is installation and training included?
Yes. Standard scope includes wooden-case export packaging, English operation manual, electrical drawings and pneumatic drawings. On-site installation, commissioning and operator training are available in two packages: (1) video-guided remote commissioning at no extra cost; (2) engineer dispatch, with the customer's airport pickup and accommodation covered by the buyer. Warranty is 1 year for non-consumable parts.
Request a quote or technical drawing
Tell us your target capacity, product type, heating preference (electric / steam) and voltage, and we will reply within one working day with a quotation, a CAD layout drawing and an indicative lead time.
Email: sales@mautotech.com
WhatsApp / WeChat: +86 159 6180 7542
Manufacturer: Wuxi Maxwell Automation Technology Co., Ltd. — Wuxi, Jiangsu, China
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