RFQ Checklist
- Pump model or exact vane dimensions (L x W x T)
- Operating speed (RPM)
- Vacuum level requirement
Self-lubricating, wear-resistant graphite vanes for dry-running rotary vane vacuum pumps. Precision-machined for optimal sealing and long continuous operation.
| Metric | Typical Range | Why It Matters |
|---|---|---|
| Thickness Tolerance | +/- 0.01 mm | Ensures free sliding in the rotor slot without gas leakage. |
| Slot Fit | Length, width, thickness, and edge chamfer from sample | A tight vane can seize; a loose vane reduces vacuum and accelerates wear. |
| Impregnation | Resin or specialty treatment by pump duty | Impregnation changes wear rate, strength, and self-lubricating behavior. |
| Failure Mode | Chipping, edge wear, cracking, or short service life | The current failure pattern is the fastest route to material selection. |
| Decision Factor | Selection Logic | Buyer Check |
|---|---|---|
| Pump slot fit | Exact thickness, chamfer, and length matter more than a nominal pump model. | Send a new sample, worn sample, or measured drawing with tolerance notes. |
| Wear mode | Material and impregnation choice should follow the observed failure: chipping, cracking, dust, or short life. | Share operating speed, vacuum level, duty cycle, and current service interval. |
| Batch stability | For MRO programs, stable lot tracking matters because vanes are replaced repeatedly. | Confirm annual demand, stocking plan, and acceptance dimensions. |
| Stage | Production / QC Checkpoint | Buyer Evidence |
|---|---|---|
| 1. Sample or drawing intake | Capture exact vane dimensions, chamfer, surface finish, and pump duty. | New sample, worn sample, or measured drawing. |
| 2. Grade matching | Select graphite grade and impregnation by wear, strength, and self-lubrication need. | Material proposal with current failure-mode notes. |
| 3. Precision machining | Machine thickness, length, edge profile, and flatness for slot movement. | Inspection record for thickness and edge condition. |
| 4. Fit validation | Confirm sliding fit, sealing expectation, and batch consistency. | Sample approval before repeat MRO supply. |
| 5. Stocking plan | Align lot tracking, packaging, and annual demand for maintenance cycles. | Demand forecast and reorder trigger. |
Yes, we can manufacture dimensionally matched replacement vanes based on drawings, samples, and service requirements.
A model number helps, but a sample or measured drawing is better because vane thickness, chamfer, and slot fit control pump performance.
We review operating speed, vacuum level, duty cycle, and failure mode, then select graphite grade and impregnation accordingly.
Yes. Once samples are approved, batch records and stocking plans can support repeat MRO demand.
Inquiry Email
Include process, product type, drawing status, purity/coating target, dimensions, quantity forecast, operating conditions, and delivery date.
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+8618857971991
Best for quick drawing checks, process fit questions, and RFQ clarification.