A PVC horizontal ribbon mixer is a batch type powder blending machine that mixes PVC resin, plastic additives and chemical raw materials with a double ribbon agitator inside a U shaped trough. The inner and outer ribbons push material toward opposite ends of the trough, so powder circulates, folds and homogenizes under low to medium shear. Published reference sizes cover about 500 to 5000 L effective volume, with mixing times around 5 to 20 minutes per batch, confirmed at enquiry.
The machine runs at low to medium speed, so the blend is evened out without grinding the particles down. That matters for PVC dry blend, where a gentle turnover keeps the resin grains intact while the stabilizers and fillers are distributed. It is a different machine from a high speed thermal mixer, which heats the batch by friction. A ribbon mixer works as the cold blending and homogenizing step, or as a general purpose mixer on its own.
Where a workshop already runs high speed mixing, the two machines are often paired: hot mix from the high speed unit drops into a ribbon mixer for cooling and final blending. Chenxing covers both sides, and the mixing unit range shows the high speed and low speed units together. The complete material flow is described on the automatic compounding line page and in the turnkey compounding plant solution.
Key points:
Double ribbon agitator creates circulation from both ends of the trough, so the batch stays uniform.
Low to medium speed and low shear keep powder grains and granules intact.
Batch type operation gives flexible recipe changes between runs.
Pneumatic flap discharge empties the trough quickly with little residue.
Jacket heating or cooling can be added for temperature sensitive recipes.
The trough is a U shaped chamber with a horizontal shaft carrying two ribbon spirals. The outer ribbon moves material toward one end while the inner ribbon moves it toward the other, so the powder is lifted, folded and pushed back into the middle again. Every particle crosses the mixing zone several times within one batch. Discharge happens through a pneumatic flap at the bottom or side of the trough, which opens wide enough to empty the batch in a short time.
The table below lists typical industry reference values. Every figure is confirmed at enquiry because the final numbers follow the recipe and the requested batch size.
| Item | Typical Industry Reference |
|---|---|
| Effective volume | 500-5000 L, confirmed at enquiry |
| Loading factor | 60-70% of effective volume, confirmed at enquiry |
| Agitator speed | 20-60 rpm, confirmed at enquiry |
| Motor power | About 7.5-22 kW small size, 30-55 kW medium size, 75-110 kW large size, confirmed at enquiry |
| Mixing time | 5-20 minutes per batch, confirmed at enquiry |
| Trough material | Carbon steel, SS304 lining or full SS304, selected by recipe, confirmed at enquiry |
| Discharge | Pneumatic flap valve, confirmed at enquiry |
| Options | Jacket heating or cooling, liquid spray, dust port, confirmed at enquiry |
| Power supply | 380V 50Hz 3 phase, customizable |
Sizing starts with the batch volume and the loading factor. A 1000 L effective trough takes about 600 to 700 L of material per charge, so the buyer decides the working batch first, then the trough follows. Bulk density of the powder matters for the motor power, and the required discharge speed can change the drive ratio. Chenxing prepares a selection sheet with the trough size, agitator speed and motor power before quoting. Nothing is fixed until the order drawing is confirmed.
The mixer sits in a line with other machines, so the supporting machinery page and the extruder portfolio page help to plan the whole workshop.
| Application | How The Mixer Is Used |
|---|---|
| PVC pipe, profile and board compounding | Blends PVC resin with stabilizers, fillers and lubricants into a uniform dry blend |
| SPC, LVT and WPC flooring material mixing | Homogenizes the floor compound before the sheet or tile line takes over |
| Plastic modification and recycling lines | Mixes base polymer, additives and regrind in controlled batches |
| Chemical and construction powder blending | General powder batching for non plastic recipes as well |
PVC dry blend for pipe production is a typical job. The batch goes into the PVC pipe mixing needs setup, and the same logic applies to PPR pipe plants and HDPE production setups. Profile shops blending compound for profile extrusion machinery use the same batch mixer, and profile project planning often lists the ribbon mixer as the preparation stage.
Flooring producers run the mixer for SPC and LVT compound, then feed board and sheet lines or a PVC marble sheet line. Recyclers blend regrind with virgin material in batches before the recycling line setup, and a two stage recycling equipment plant can use the mixer for consistency between runs. Film recycling washing and plastic agglomerator machine shops also keep a ribbon mixer for additive dosing.
What can be customized:
Effective volume and trough size.
Trough material: carbon steel, SS304 lining or full SS304.
Jacket heating or cooling.
Liquid spray nozzle for additive dosing.
Discharge valve form.
Agitator speed and drive arrangement.
Dust port connection.
Linkage with an upstream compounding line.
What stays fixed:
Double ribbon agitation principle, because the two-direction spiral flow is what gives the even mix.
Batch type structure, so each charge is processed and emptied separately.
U type trough form, which matches the ribbon geometry and makes discharge clean.
When powder needs to move in and out without manual loading, the mixer can be paired with a powder transfer machine or a continuous powder transfer unit, and regrind can be returned through a regrind transfer unit. For a wider view of the production floor, the pipe line projects page and the complete project solutions page show how mixers and extruders are arranged together.
Chenxing Machinery has held ISO9001 certification and CE compliance for its plastic machinery range since the company was founded in 2002, with more than 20 years of extrusion and auxiliary equipment experience. Every ribbon mixer goes through factory checks before shipment: ribbon clearance is measured against the trough wall, the motor and gearbox alignment is verified, welds are inspected and the discharge flap is tested for sealing. The machine is then run dry to confirm the agitator turns freely and the drive runs without vibration.
Each mixer ships with an inspection report and a certificate of conformity. A 1-year warranty covers the equipment. Installation and commissioning are available, and Chenxing engineers or partners can train the local operators on batch charging order, loading factor and flushing between recipes. Global installation service can be arranged on request. Company background is on the company profile page, and the full machine catalog lists the rest of the extrusion and auxiliary range.
MOQ: 1 set.
Lead time: confirmed on order.
Packing: export wooden case, trough and agitator shaft packed separately and fixed inside the case.
Trade terms: FOB, EXW, CFR, CIF, CIP.
Payment: T/T or L/C.
Before shipment the trough opening is sealed and the drive unit is wrapped. A packing list and shipping marks are attached to each case. Machine documents and drawings are available from the catalog download section, and the common questions page answers typical buying points.
It is a batch type powder blending machine with a double ribbon agitator inside a U shaped trough, used to mix PVC resin, plastic additives and chemical raw materials evenly.
PVC powder, plastic additives, fillers, chemical raw materials, granules and some free flowing powders. Very sticky or highly abrasive recipes should be discussed at enquiry.
Two ribbon spirals on one horizontal shaft push material toward opposite ends of the trough, so the powder circulates, folds and homogenizes under low to medium shear.
Typical industry reference is about 500 to 5000 L effective volume, with a loading factor of 60-70%, confirmed at enquiry.
Typical mixing time is about 5 to 20 minutes per batch depending on the recipe and the required uniformity, confirmed at enquiry.
Yes, with an optional jacket for heating or cooling. Liquid additives can also be sprayed in through a nozzle during mixing.
PVC pipe, profile and board compounding, SPC and LVT flooring material mixing, plastic modification and recycling lines, and chemical or construction powder blending.
A high speed mixer heats the batch by friction and is used for hot mixing of additives. A ribbon mixer runs at low to medium speed and is used for cold blending and homogenizing, often as the cooling step after a high speed mixer.
Carbon steel, SS304 lining or full SS304, selected according to the recipe, confirmed at enquiry.
MOQ is 1 set. Lead time is confirmed on order after the selection sheet and drawing are approved.
For more details on related equipment, the ABS pipe production line page, the PVC strip extrusion page and the drainage pipe machinery page cover lines that start from a prepared dry blend.
To get a selection sheet and a quotation, please provide:
Material types and bulk density.
Target batch volume or hourly output.
Whether heating, cooling or liquid addition is required.
Voltage, frequency and phase.
Workshop space and discharge height.
Destination port and trade terms.
Nicole | Email: ceo@cxsljx.com | Tel WhatsApp WeChat: +86 159 5118 7228
For a quick look at related machines, the single wall corrugated pipe line page, the double wall corrugated pipe line page and the washing machine series page show equipment that follows the mixing stage. You can also use the enquiry form or check the company news and the Chenxing site.