Custom Rollers and Plastic Parts for Your Application
PLDS is based in Ningbo, China, and specializes in custom window and door rollers, window and door plastic parts, and truck and trailer rollers for overseas customers. We review your drawings or physical samples and work with our long-term manufacturing partners to produce parts for your application.

From Drawing or Sample to Delivery
- 01
Share Your Requirements
Send us a drawing or physical sample, along with the quantity you need. Photos can also help us understand your request before reviewing the details.
- 02
Material Review & Quotation
We quote based on your drawing or sample and required quantity. For sample-based projects, we assess the material and, where appropriate, recommend alternatives that balance performance and cost for your approval.
- 03
Order Confirmation & Production
Once the order and terms are agreed, we arrange production with our long-term manufacturing partners, including tooling and trial samples where needed.
- 04
Quality Control & Shipment
We take the lead in quality control, working with our manufacturing partners to check parts against the agreed requirements, and arrange export and shipment.
Production Highlights
A look inside the factories of our long-term manufacturing partners.



Selected Projects
From a Sample to Repeat Orders
A customer came to us with a roller component they needed to have made, but no drawings. We took the sample apart, measured the individual parts and prepared CAD drawings. Working with our long-term tooling partner, we then arranged tooling and production. The customer returned with repeat orders.
Roller Components for Truck and Trailer Curtain-Side Systems
We supply a long-term customer with custom roller components for truck and trailer curtain-side systems. Our role includes coordinating the production and supply of the plastic parts, metal connectors and fasteners needed for these components.
Other Custom Components
We have also supplied custom components for milking machines and roof gutters.
Tell Us About the Custom Part You Need
We can make custom parts based on your drawings or a physical sample you provide. Tell us what you’d like us to make using the form, or email us directly.
Email us your drawings or photos, or contact us to arrange sending a physical sample. Photos can help start the discussion; a drawing or physical sample is needed for a manufacturing assessment and quotation.
Send an Inquiry
Email and requirements are required. Other fields are optional.
If the form is unavailable, please email us atsales@pld-hardware.com.





