Begin with one identifiable component
A useful request for quotation lets the supplier understand which part is needed and which details still require confirmation. Start with the machine brand and model, a part reference and the quantity. If you need several different elements, label each line separately. Avoid sending a folder of unlabelled photographs and one total quantity: it is easy for the wrong component to be associated with a quotation line.
1. Include the controlled drawing
Send the drawing number and revision. Identify the diameter, axial length, pitch and internal spline requirements. If some dimensions are unavailable, say so rather than filling them in from an estimate. A worn sample can help a review, but its measured size may differ from the original specification. Keep measured values distinct from nominal dimensions taken from the machine documentation.
2. Explain the operating context
State the resin and fillers processed, the existing material if known, and the reason for replacement. Photographs of wear are useful when linked to the element’s position in the screw assembly. If you want an alternative material, explain the objective and ask the supplier to identify the proposed option. Do not treat an unfamiliar trade name as proof that two materials are equivalent.
3. Separate a repeat order from a design change
For a like-for-like replacement, provide the approved specification or the previous order reference. If the request changes pitch, geometry, material or the assembly arrangement, mark the change clearly. A process change should be reviewed by the person responsible for the equipment. A quotation for a component should not silently become a promise of increased throughput or longer service life.
4. Specify inspection and delivery needs
Include the delivery destination, requested timing and any required inspection records. Ask the quotation to identify what documents are included. Packing, shipment identification and drawing revision should be clear before purchase. If timing is critical, distinguish the date you need the part from a delivery commitment confirmed by the supplier.
A concise enquiry format
- Machine: brand/model and relevant identification.
- Part: designation, drawing number/revision and quantity.
- Geometry: the controlled drawing and any unresolved dimensions.
- Application: resin/fillers, existing material and replacement reason.
- Quality: inspection records or tests to be agreed.
- Delivery: destination and required timing.
Use our quotation request page to start a discussion, or review conveying screw elements for component-specific information.