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Tell us the material and the target output
Five numbers get you an extrusion line quotation you can compare: material, filler or additive level, target kg/h, pellet shape required, and where the plant is. Everything else we can work out with you.
25–50 kg is enough. Include the datasheet and the target loading. We run it on KTE-20B or KTE-36B and return pellets, video and a capacity report in 3–7 days.
Kerke Extrusion Equipment
Nanjing, Jiangsu, China
Visits and video audits by appointment.
After you send the form
A quotation you can act on comes back in one working day — a costed configuration, not a brochure. The sequence:
| Step | What happens | Time |
|---|---|---|
| 1. Enquiry review | An engineer who has run your material class reads the five numbers the same day. | Same day |
| 2. Clarification | Two or three targeted questions — pellet shape, filler level, space — one email round. | 1 working day |
| 3. Costed quotation | Machine model, L/D, drive, pelletizing method, layout and the output basis, each priced. | 1–3 working days |
| 4. Material trial (optional) | You send 25–50 kg; back come pellets, video, temperatures and measured kg/h. | 3–7 days |
| 5. Build and test | Elements and barrels machined in-house, gearbox run in 24 h, line wet-run with your material before shipment. | 30–45 days |
There is no salesperson layer: the reply is written by the engineer who sized the line, and the output figure you sign against is measured, not extrapolated.
What the quotation includes
Each quotation is itemised so it can be compared line by line against another supplier's offer:
- Machine specification. Model, torque class, L/D, screw diameter, drive and screw speed range.
- Screw configuration. Element-by-element: kneading blocks, mixing zones, degassing positions, matched to the material.
- Pelletizing method and die. With the pellet size range and why this method fits the material.
- Output basis. The kg/h figure is tied to a material and filler level — a number with conditions, not a marketing peak.
- Wear parts package. First spare set of elements, shafts and liners, priced separately — the lifetime cost in the open.
- Delivery and installation. EXW, CIF or DAP, plus remote or on-site commissioning options.
If a competing quotation shows one number with no basis, ask it for the output basis and the wear package — that is where the difference usually hides.
What drives the price
Two machines with the same screw diameter can sit 30–40% apart and both be correct. The levers, in order of impact:
| Lever | Effect | Worth it when |
|---|---|---|
| Torque class | A smaller machine runs the same kg/h with less residence time. | High fillers, engineering plastics, tight colour changes. |
| L/D | More degassing and distributive mixing in one pass. | Volatile feeds, twin additives, reactive extrusion. |
| Wear package | Bimetallic liners and hardened elements hold clearance over years of abrasive feed. | Any filled compound — payback in months of stable output. |
| Pelletizing method | Underwater / water-ring cost more than strand but remove a process step. | TPU/TPR, hot-melt, high-throughput recipes. |
Where a cheaper option is genuinely enough — a pilot line, a single-shift lab machine — the quotation says so instead of upsizing.
Material trials — prove it before you sign
25–50 kg is enough for a full trial on a KTE-20B or KTE-36B lab extruder. Include the datasheet and target loading; the trial returns pellets, running video, zone temperatures, torque and measured output in 3–7 days. Trials run year-round, free for serious projects — you cover the courier to Nanjing. Most quotations go out with the trial report attached, so the kg/h you sign against is one we measured with your material.
Related on this site: Twin screw extruder range · Lab equipment & trials · Lines by application · Service & commitments
Before you quote — FAQ
| Question | Answer |
|---|---|
| How fast can I get a firm price? | One working day after the five numbers; 1–3 days for a full costed configuration with layout. |
| Can you quote against another supplier's offer? | Yes — send their scope; we quote the same items separately so the comparison is like for like. |
| What payment terms do you accept? | 40% with order, 60% before shipment; L/C for established accounts. Quotations hold 30 days. |
| Do you install and commission at my plant? | Remote commissioning is included; on-site commissioning and operator training are quoted options. |