SRL-Z Hot and Cold Mixer Unit
A vertical hot and cold mixer combination for PVC dry blend, delivering homogeneous compound with a controlled cooling curve.
RAL 5021 · semi-matt finish
Production line introduction
How the SRL-Z Hot and Cold Mixer Unit is engineered, and which sub-assemblies protect the properties your customers actually buy.
A vertical hot and cold mixer combination for PVC dry blend, delivering homogeneous compound with a controlled cooling curve.
Every BENK line is matched to the material and product you actually sell. The extruder, die, calibration or forming section and the downstream automation are sized together, then assembled and trial run in our Zhangjiagang works before shipment, so the performance you see in the factory acceptance test is the performance you install. The machine frame is finished in RAL 5021 water blue with a semi-matt powder coating.
Technical Parameters of SRL-Z Hot and Cold Mixer Unit
Reference values for the standard configuration. Final width, thickness, speed and output are confirmed against your material, product drawing and target capacity.
| Item | Specification |
|---|---|
| Type | Vertical hot and cold mixer |
| Volume | 200/500 – 800/2500 L |
| Motor | 30/42 – 110/160 kW |
| Output | 400 – 3000 kg/h |
| Heating | Electric or oil |
| Control | PLC with temperature curve |
Need a model outside this table? Send us your sheet size, resin and target output — BENK will return a sized configuration with a budgetary price.
Production line technical advantages
Every sub-assembly below is selected to protect the properties your customers buy: transparency, gauge, strength and surface.
Heating and mixing in one vessel
A high speed impeller generates the shear and friction that heat the compound quickly and evenly.
Controlled cooling
The cooling mixer brings the batch down along a controlled curve, which decides the bulk density and flow of the dry blend.
Discharge and weighing
Pneumatic discharge with optional batch weighing connects the mixer to the downstream extrusion line.
Wear resistant contact parts
Stainless steel contact surfaces and hardened mixing tools extend service life with filled compounds.
PLC temperature control
PLC control with a temperature curve recipe keeps batch quality reproducible.
RAL 5021 finish
The machine frame is powder coated in RAL 5021 water blue with a semi-matt finish.
Production line advantages
- Heating and mixing in one vessel — A high speed impeller generates the shear and friction that heat the compound quickly and evenly.
- Controlled cooling — The cooling mixer brings the batch down along a controlled curve, which decides the bulk density and flow of the dry blend.
- Discharge and weighing — Pneumatic discharge with optional batch weighing connects the mixer to the downstream extrusion line.
- Wear resistant contact parts — Stainless steel contact surfaces and hardened mixing tools extend service life with filled compounds.
Built to run
Material preparation, feeding, downstream handling and packing can be integrated into one turnkey scope.
Process flow
From raw material to finished pack, each station is matched in capacity so the line runs at the rated output without a bottleneck.
- Material loading
- High speed heating mix
- Discharge to cooling mixer
- Cooling along temperature curve
- Discharge
- Conveying to extruder silo
- Batch weighing
- Dust collection
Wide applicability
Typical end uses for the material this line produces, based on the applications BENK equipment already serves worldwide.
PVC dry blend
Rigid and plasticized PVC dry blend for pipe, profile and sheet extrusion.
Powder compounding
Dry blending of powder, filler and additive packages.
WPC and masterbatch
Mixing wood flour compounds and masterbatch concentrates.
Options and auxiliary equipment
Configure the line for the market you sell into. Popular additions include:
- Batch weighing and automatic recipe control
- Pneumatic conveying to extruder day bins
- Dust collection and filtration
- Liquid additive dosing
- Hot oil or electric heating options
- Stainless steel contact surfaces
Why buy from BENK Machinery
Extrusion specialists, not traders
BENK designs and builds extrusion lines in Zhangjiagang with an in-house R&D and process team, so machine selection is matched to your resin and product instead of a catalogue number.
Evidence before shipment
Every line is assembled and run in our works. You receive trial video, gauge and output records, and are welcome to attend the factory acceptance test.
Total cost, not lowest price
Energy-efficient drives, permanent magnet motors and optimized heating reduce kWh per tonne, which usually matters more over five years than the initial purchase price.
Real commissioning support
Our engineers install, commission, train your operators and stay involved until the line hits the specified output and quality on your material.
Spares and response
Critical spares are stocked for fast dispatch, and the Siemens Ethernet control platform allows remote diagnosis before a service visit is needed.
Upgrades as you grow
Co-extrusion, gauge control, automation and downstream equipment can be added later, protecting your original investment.
Frequently asked questions
The questions buyers ask most often about this mixer.
What batch size can the mixer handle?
Why is a cooling mixer needed?
What is the difference between the horizontal and vertical types?
Can the mixer be linked to my extruders?
Get a quotation for the SRL-Z Hot and Cold Mixer Unit
Tell us the material, sheet or film size, target output and the country the line will be installed in. We will reply with a sized configuration, a budgetary price and an indicative delivery time.
- Telephone
- +86 512 5896 1463
- Mobile / WhatsApp / WeChat
- +86 159 5096 2426
- kpm@benkpm.com
- Address
- No.20 Huatang Road, Economic Development Zone (South District), Zhangjiagang City, Jiangsu Province, China
Related extrusion lines
Zhangjiagang City BENK Machinery Co., Ltd. · www.benkpm.com · Plastic extrusion lines and extruders since 2004.