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Product Description
The SHR-10A is a 10-liter laboratory-grade high-speed mixer purpose-built for research institutes, university laboratories, and small-batch trial production. Engineered by Chenxing Machinery, this compact yet powerful mixer handles dry-blend mixing, coloring, and drying of PVC and related polymer materials with precision and repeatability that meet international standards.
At just 10 liters total volume (7 liters effective), the SHR-10A fills a critical gap between benchtop sample preparation and full-scale industrial mixer production lines. It is the ideal R&D companion for organizations that also operate Chenxing's larger production equipment — from PVC hot-cutting pelletizing lines to sheet extrusion lines and pipe extrusion solutions.
Built around imported core components, PLC programmable automation, and negative-pressure mixing technology, the SHR-10A delivers consistent, reproducible results — the kind of data integrity that research publications and process scale-up studies demand.
| Parameter | Value |
|---|---|
| Model | SHR-10A |
| Total Pot Volume | 10 L |
| Effective Volume | 7 L |
| Motor Power | 3 KW |
| Main Shaft Speed | 2000 rpm |
| Heating Method | Self-friction (no external heat source) |
| Discharge Method | Manual |
| Mixing Principle | Negative-pressure mixing |
| Control System | PLC programmable controller |
| Pot Material | Stainless steel, pressure die-cast, double-layer (working + cooling zones) |
| Impeller Material | Stainless steel precision die-cast, dynamic & static balanced |
| Cooling Design | Spiral agitation blades, full-chamber zero-dead-zone cooling |
| Drive System | Direct-drive motor with imported VFD (variable frequency drive) |
| Electrical Components | Imported brand instrumentation & electrical devices |
| Safety Features | Protective guard, emergency stop button, manual discharge lock |
| Application | PVC dry blends, powder coatings, masterbatch, pigments, TPR, WPC, SPC |
Note on dimensions and weight: The SHR-10A is designed with a laboratory-optimized compact footprint. For exact external dimensions, shipping weight, power supply requirements (voltage phase frequency), noise ratings, IP protection class, and compliance certifications (CE, ISO), please contact our engineering team — we will provide a detailed datasheet tailored to your facility's specifications.
The SHR-10A incorporates advanced negative-pressure mixing technology, absorbed and refined from international best practices. During operation, the mixing chamber maintains a micro-negative-pressure environment that prevents airborne dust from escaping into the laboratory. This is particularly critical when handling fine powders such as pigments, calcium carbonate fillers, and PVC resin — materials known for creating respiratory hazards and cross-contamination risks in open or poorly sealed mixers.
For researchers working in shared laboratory spaces or cleanroom environments, this feature translates directly to improved workplace safety, reduced cleanup time, and more consistent experimental conditions across mixing batches.
Every electrical device and instrument on the SHR-10A is sourced from internationally recognized brands. The variable frequency drive (VFD), PLC controller, temperature sensors, timers, relays, and contactors are all imported components selected for their proven track record in industrial automation. This commitment to component quality means:
Reduced unscheduled downtime during critical experiments
Consistent performance over thousands of mixing cycles
Longer service intervals compared to mixers built with generic components
Global availability of spare parts through established supply chains
At the heart of the SHR-10A is a PLC-based control system that allows researchers to program and save mixing recipes. Temperature ramp profiles, mixing duration, and shaft speed can all be pre-set and recalled with precision. This programmability is essential for:
Academic research: Documented, repeatable parameters that stand up to peer review
Formula development: Systematic variation of one parameter at a time while holding others constant
Quality control: Locked-in production recipes for small-batch consistency
Scale-up studies: Data that maps directly to larger industrial mixer parameters
The mixing impeller is manufactured from stainless steel using precision die-casting, then subjected to both dynamic and static balance testing before assembly. At 2000 rpm — a speed that would cause noticeable vibration in inadequately balanced rotors — the SHR-10A operates smoothly and quietly. The benefits are threefold:
Uniform mixing: No dead zones or inconsistent shear zones within the pot
Extended bearing life: Reduced mechanical stress on the main shaft and drive assembly
Reproducible results: Consistent impeller performance batch after batch
The mixing uniformity achieved matches international benchmarks for laboratory mixing equipment.
The cooling chamber features a spiral agitation blade design that ensures no portion of the material remains static during the cooling phase. This full-chamber, zero-dead-zone cooling architecture delivers:
Accelerated cooling rates: Every particle surface contacts the cooled chamber wall through continuous spiral movement
Complete material discharge: No residual material trapped in corners or stagnant zones — critical when switching between formulations to prevent cross-contamination
Energy efficiency: Shorter cooling cycles reduce total energy consumption per batch
For downstream processes such as plastic grinding, pulverizing, and pelletizing, a properly cooled, fully discharged dry blend is essential for consistent final product quality.
Unlike mixers that rely on external heating jackets or oil-circulation systems, the SHR-10A generates heat through the friction between the high-speed impeller and the material itself. This self-friction heating mechanism offers distinct advantages for laboratory settings:
No external heat source required: Eliminates the need for thermal oil systems, heating elements, or steam connections
Uniform heat distribution: Heat is generated throughout the material mass, not just at the wall
Energy savings: Mechanical energy from the motor is directly converted to thermal energy within the material
Precise temperature control: Combined with PLC monitoring, temperature rise can be programmed and profiled
With a 10L total volume and a deliberately small footprint, the SHR-10A is designed to fit into space-constrained laboratory environments. The unit is self-contained — no external heating systems, no complex utility connections beyond standard electrical supply and optional cooling water. Installation is straightforward, and routine maintenance access points are positioned for easy reach without requiring equipment relocation.
The SHR-10A handles a wide range of polymer powders and compounds:
PVC dry blend formulations
Powder coating compounds
Color masterbatch and pigment dispersions
Thermoplastic rubber (TPR) compounds
Wood-plastic composites (WPC)
Stone-plastic composites (SPC)
Biodegradable plastic formulations
This versatility makes the SHR-10A a worthwhile investment for laboratories that serve multiple research streams or contract R&D facilities handling diverse client projects.
Safety is non-negotiable in laboratory equipment. The SHR-10A incorporates multiple layers of protection:
Protective guard: Physical barrier around rotating and hot components
Emergency stop button: Immediately accessible, instantly cuts power to the motor
Manual discharge lock: Prevents accidental opening during operation
Sturdy frame construction: Stable and resistant to tipping or vibration-induced movement
When the 3KW motor drives the impeller at 2000 rpm, the stainless steel blades shear through the powder charge at high speed. The mechanical friction between impeller surfaces and powder particles — combined with inter-particle collisions — converts kinetic energy directly into thermal energy. The material temperature rises rapidly and uniformly, without the thermal gradients associated with wall-contact heating methods. The PLC controller monitors real-time temperature via embedded sensors and modulates the VFD output to maintain the programmed heating profile.
Throughout the heating and mixing phase, the chamber operates under negative pressure. A slight vacuum (relative to ambient) is maintained, which serves two purposes: first, it prevents fine powder from escaping through any microscopic gaps in seals or gaskets; second, it assists in removing moisture vapor that evolves as the material heats up, contributing to the drying function of the mixer. The result is a cleaner laboratory atmosphere and drier, better-dispersed final blend.
Once the target temperature and mixing duration are achieved, the cooling phase begins. Cooling water circulates through the double-layer jacket while the spiral agitation blades in the cooling zone keep the material in continuous motion. Every particle is repeatedly brought into contact with the cooled chamber surface, ensuring rapid and uniform temperature reduction. When the material reaches discharge temperature, the operator opens the manual discharge gate — the spiral blade design assists in pushing the material toward the outlet, achieving near-complete emptying without mechanical scraping or manual intervention.
For labs that require integrated cooling solutions, Chenxing offers compatible SML air-cooled chillers and SML water-cooled chillers that can be paired with the SHR-10A.
| Material Category | Typical Formulations | Mixing Objective |
|---|---|---|
| PVC Dry Blends | Rigid PVC, flexible PVC, CPVC compounds | Homogeneous dispersion of resin, stabilizers, lubricants, fillers |
| Powder Coatings | Epoxy, polyester, hybrid systems | Uniform distribution of resin, curing agent, pigment, additives |
| Color Masterbatch | PE/PP/PVC/ABS carrier systems | High pigment loading, consistent color dispersion |
| Pigments | Organic & inorganic pigments | De-agglomeration and even distribution in carrier resin |
| Thermoplastic Rubber (TPR) | SBS/SEBS-based compounds | Blending of elastomer, oil, filler, and additives |
| Wood-Plastic Composites (WPC) | PE/PP/PVC + wood flour/fiber | Dry blending before extrusion or pelletizing |
| Stone-Plastic Composites (SPC) | PVC + calcium carbonate + additives | Homogeneous dry blend for SPC floor production |
The SHR-10A serves as the front-end mixing solution that feeds into various downstream production equipment:
Pelletizing: After mixing, compounds can be fed into a PVC hot-cutting pelletizing line or plastic pelletizer for granulation.
Sheet Extrusion: Mixed PVC/WPC compounds feed sheet extrusion lines, APET/PETG/CPET sheet lines, or twin-screw PET sheet lines.
Pipe Extrusion: Mixed formulations feed into pipe extrusion solutions, including reinforced pipe lines.
Grinding & Pulverizing: Post-mixing size reduction with plastic grinding machines, disc grinding pulverizers, or SMP pulverizers.
Screening: Powder classification via ZSQ vibrating screens.
Material Handling: Automated feeding with screw feeders.
Profile & Board Extrusion: WPC/SPC formulations for PP hollow formwork and PP/PE hollow grid board.
Formulations developed and tested on the SHR-10A ultimately support the manufacturing of:
Plastic sheets and panels
PVC, PE, and PP pipes
Specialty profiles and custom extrusions
WPC decking, railing, and fencing
SPC flooring and wall panels
Biodegradable plastic products
Powder-coated metal components
Academic and government research labs use the SHR-10A for fundamental polymer science research — studying formulation-property relationships, characterizing new additive systems, and training the next generation of polymer engineers. The PLC's recipe storage and data export capabilities support the documentation standards required for peer-reviewed publications and thesis research.
Typical use case: A materials science department investigating the effect of bio-based plasticizers on PVC mechanical properties. The SHR-10A allows graduate students to prepare 7-liter batches under precisely controlled temperature and speed profiles, with data logs that can be cited in journal submissions.
Polymer manufacturers, compounders, and additive suppliers operate the SHR-10A as their primary small-scale development tool. Whether optimizing a PVC pipe formulation for higher filler loading, developing a new color masterbatch for a customer, or screening candidate stabilizer packages, the SHR-10A provides the reproducible mixing platform that bridges benchtop experiments and pilot-scale trials.
Typical use case: A masterbatch producer developing a new pearlescent effect pigment masterbatch. The SHR-10A's self-friction heating and negative-pressure environment ensure pigment dispersion quality that predicts performance on the production plastic pelletizer.
For specialty compounders and toll manufacturers producing high-value, low-volume formulations, the SHR-10A serves as a production mixer in its own right. Niche applications — medical-grade PVC compounds, color-matched repair kits, custom powder coating colors — often require batch sizes that are too small for industrial mixers but demand the same mixing quality.
Typical use case: A powder coatings manufacturer offering custom color matching services. Each customer sample is prepared on the SHR-10A with full process documentation, then the approved recipe is scaled to production equipment. Post-mixing, oversized particles are removed via a ZSQ vibrating screen and fines recycled through a disc plastic pulverizer.
Unlike purchasing a standalone lab mixer from a general equipment supplier, choosing the SHR-10A means plugging into the full Chenxing Machinery product ecosystem. The formulations you develop on the SHR-10A map directly to production-scale equipment — from PVC hot-cutting pelletizing lines and sheet extrusion lines to pipe extrusion solutions with ancillary equipment like caterpillar haul-off machines, dust-free pipe cutters, pipe coilers, and pipe belling machines. Scale-up is seamless because the underlying mixing principles, control philosophy, and component quality remain consistent across our entire product range.
Chenxing Machinery provides application engineering support to help you get the most from the SHR-10A:
Pre-installation site assessment and utility requirement planning
On-site or remote commissioning and operator training
Mixing process optimization consulting — we help refine your recipes for maximum efficiency
Scale-up guidance: translating SHR-10A parameters to production-scale industrial mixer settings
Spare parts availability with global shipping
Integration planning with downstream equipment: plastic grinding machines, SMF pulverizers, automatic feeding machines, and industrial chillers
Every SHR-10A undergoes factory acceptance testing before shipment, including:
Impeller dynamic and static balance certification
PLC program verification and I/O check
Dry-run speed ramp test (0–2000 rpm)
Temperature sensor calibration verification
Safety interlock functional test
We welcome customer-witnessed factory testing and can accommodate your specific validation protocols.
The total cycle time depends on your specific formulation and target temperature, but a typical rigid PVC dry blend (from ambient to 110–120°C, including cooling back to ~40°C) ranges from 15 to 25 minutes per batch. The self-friction heating mechanism is highly efficient — the 3KW motor at 2000 rpm can bring a 7-liter charge to processing temperature within approximately 8–12 minutes. The spiral cooling system then brings the material back to discharge temperature in 6–10 minutes, depending on cooling water temperature and flow rate. For precise cycle time estimation with your specific formulation, contact our engineering team with your material specifications and we will provide a detailed projection.
Yes. While the SHR-10A is primarily designed for dry powder mixing, liquid additives such as plasticizers, stabilizers, and processing aids can be introduced during the mixing cycle. The high-speed impeller action disperses liquid components rapidly throughout the powder mass. For laboratory applications involving significant liquid plasticizer absorption (e.g., flexible PVC formulations), we recommend introducing liquids after the dry blend has reached 60–70°C — the elevated temperature accelerates absorption and prevents localized wet spots. The negative-pressure environment also assists in removing any volatile components from liquid additives during the heating phase.
The SHR-10A occupies a distinct performance class above benchtop blenders and planetary mixers. Key differences: (1) Speed — at 2000 rpm, the SHR-10A generates the high shear rates necessary for proper PVC dry-up and pigment dispersion, whereas planetary mixers typically operate below 500 rpm; (2) Self-friction heating — benchtop blenders and planetary mixers do not generate sufficient frictional heat to bring PVC compounds to the 110–130°C range required for proper gelation and dry blend formation; (3) Negative pressure — standard laboratory mixers lack the sealed, negative-pressure design that prevents dust escape and aids moisture removal. If your application requires true PVC dry blend preparation comparable to industrial high-speed mixer quality, the SHR-10A is the appropriate tool.
The SHR-10A requires: (1) Electrical supply — standard 3-phase power; the exact voltage, frequency, and current rating are configured to your regional standards (380V/50Hz, 440V/60Hz, etc.) at time of order. Please specify your facility's electrical specifications when inquiring; (2) Cooling water — a clean water supply at typical municipal pressure (2–4 bar) for the cooling jacket circuit. A recirculating chiller system such as our SML water-cooled chiller is recommended for consistent cooling performance and water conservation; (3) Floor space — the compact footprint requires approximately 1.5 square meters including operator access; (4) Ventilation — while the negative-pressure design minimizes dust escape, standard laboratory ventilation is recommended. No compressed air, steam, or special foundations are needed.
Absolutely — this is one of the SHR-10A's primary design intentions. Because the SHR-10A uses the same mixing principles (high-speed self-friction heating, negative-pressure environment, PLC recipe control) as Chenxing's larger industrial mixer models, parameters developed on the 10L unit translate meaningfully to production scale. Key scale-up correlations include: impeller tip speed, specific energy input (kWh/kg), and temperature profile shape. Our engineering team can provide specific scale-up guidance and, for customers operating both lab and production Chenxing equipment, we offer calibration services to ensure consistent results across scales.
Chenxing Machinery provides a standard 12-month warranty on the SHR-10A covering manufacturing defects in materials and workmanship. Imported electrical components carry their respective manufacturer warranties. Beyond the warranty period, we offer: (1) technical support via email, phone, and video call; (2) spare parts supply with express international shipping; (3) remote diagnostics and troubleshooting; (4) on-site service engineer dispatch (at cost) for major repairs or refurbishment; (5) extended warranty packages available for purchase. All SHR-10A units are supported with full documentation, electrical schematics, PLC program backup, and a recommended spare parts list.
Yes. The SHR-10A can be integrated with Chenxing's automatic feeding machines for automated raw material charging, and the manual discharge port can feed directly into downstream equipment such as plastic crushers (for agglomerate breaking), vibrating screens (for particle size classification), or directly into storage containers for subsequent extrusion or pelletizing. For labs planning fully automated workflow integration, our engineering team can design a custom layout and provide integration documentation including I/O mapping for the PLC interface.
Ready to equip your laboratory with the SHR-10A? Follow these four steps:
Send us the following information so we can recommend the optimal configuration:
Material type(s) you will be mixing (PVC, WPC, SPC, masterbatch, etc.)
Typical batch size and daily throughput requirements
Your facility's electrical specifications (voltage, phase, frequency)
Any special requirements (corrosive materials, cleanroom environment, data logging integration)
Our engineering team will review your requirements and prepare a detailed quotation including:
SHR-10A mixer configured to your specifications
Optional accessories (cooling chiller, spare impeller set, tool kit)
Shipping and delivery timeline
Warranty terms and after-sales support package
Once you approve the quotation and proforma invoice, we schedule production. Typical lead time is 15–25 working days depending on current production queue and customization requirements. We will keep you updated with production progress photos and estimated ship date.
Your SHR-10A is shipped with full documentation. We offer:
Remote video-guided commissioning and operator training
On-site commissioning by a Chenxing engineer (available at additional cost)
Ongoing technical support for the lifetime of the equipment
Phone / WhatsApp: +86 15951187228
Email: ceo@cxsljx.com
Company: Zhangjiagang Chenxing Machinery Co., Ltd.
Website: www.chenxingmachinery.com
