
Pulleys and sheaves
Rope, crane and conveyor pulleys
- Applications
- Crane and hoist pulleys, Rope sheaves
We cast nylon sheets, rods and tubes in our own plant, machine them into high-volume spare parts to your drawings, and ship them ready for export.
A DWG, DXF, STEP, IGES or PDF drawing, or a sample part, is enough. You set the dimensions.
Then the part, to the same size.
Before series production, we send you the first part with a measurement report for approval.
From sample to series, the same size across thousands.
The first part you approve becomes the reference for the whole series. Blanket orders and scheduled deliveries cover your annual demand.
CNC Machining
Besides stock shapes, we make finished spare parts for machinery and construction equipment. All to drawing or sample, from a single piece to series production.
Machined Parts
Rope, crane and conveyor pulleys

Any module, made to order

Large-diameter rings and collars

For iron and steel plants

Drilled, countersunk, cut to size

JCB, Hidromek, Volvo, Komatsu and others

Conveyor and drive systems

Custom modules and profiles

Various thicknesses and profiles

Impact and wear resistant
Why cast nylon?
Cast nylon (cast polyamide, PA6G) is light, wear resistant and self-lubricating, which makes it a strong alternative to bronze, steel and aluminium parts.
Standard sizes from Ø 20 mm to Ø 1000 mm, cut or machined to size on request. Kestamit® and Castomid® are our registered brands.

We supply OEM spare parts directly as a manufacturer to machine builders, maintenance companies and distributors abroad. From quotation to delivery, you deal with one contact.
FAQ
Cast nylon, known in Türkiye as kestamit, is polyamide 6 produced by casting (PA6G). It is light, wear resistant and self-lubricating, so it replaces bronze, steel and aluminium in machine parts. Kestamit® and Castomid® are registered trademarks of OKD Polimer.
Cast nylon (PA6G) has higher crystallinity and lower internal stress than extruded nylon (PA6). Large, thick parts can therefore be machined without warping. Extruded PA6 is an economical choice for small-diameter rods and thin sheets.
Yes. We produce parts from a single piece up to thousands on CNC lathes and machining centres, to your DWG, DXF, STEP, IGES or PDF drawing or a sample part. Before series production we send the first part with a measurement report for your approval.
Yes. OKD Polimer has been manufacturing since 2004 and exports to Canada, the USA, Romania, Serbia, Bulgaria, Poland, Vietnam and other countries. Shipments go under EXW, FCA, FOB, CFR, CIF or DAP terms, with export packing and complete documents.
Besides cast nylon (PA6G) sheet, rod and tube, we supply POM, PE-1000, PE-500, PTFE, PET, extruded PA6, PP, PVC and PEEK as sheet, rod or CNC-machined parts.
Fill in the quote form on this site, or email your drawing with quantity, material and destination country to info@okdpolimer.com. Phone: +90 262 643 03 60.
No need to check a standard size list. Enter the size you need and we will prepare our quote for it.
If you have a drawing, send it by email: info@okdpolimer.com · WhatsApp