Cam Chain Tensioner for QJMotor SRK 400: Load Rated Version
This cam chain tensioner is built for the QJMotor SRK 400 and supplied to a written specification, so the part that comes off the line in the next order matches the one you approved. Fitment, base material and finish are fixed before sampling starts — that is what keeps the load rated version programme stable once it moves from first order to repeat order.
Most buyers come to us after something went wrong: warranty claims traced back to a single lot, or premature wear on the first batch. Both are avoidable when the specification is written down before bulk and the approved sample is kept as the reference.
Specification
| Part | Cam Chain Tensioner |
|---|---|
| Fitment | QJMotor SRK 400 |
| Version | Load Rated Version |
| Base material | Magnesium Alloy |
| Typical use | Delivery Fleets |
| MOQ | 2,000 pieces per specification |
| Sampling | 10 working days, 5 days per revision |
| Bulk lead time | 25-60 days after approval |
| Compliance | ISO 9001 |
What decides whether it lasts
- Material — Magnesium Alloy is the base; treat any substitution as a new approval.
- Hardness and heat treatment — recorded per lot, not per batch of paperwork.
- Fitment tolerance — checked on the actual QJMotor SRK 400 mounting, not on a catalogue drawing.
- Finish — a sealed surface treatment holds up where the machine sees salt, mud and daily washing.
- Packing — individual packing plus inner cartons sized for the workshop bench.
Processes used on this line
- gravity casting
- robot welding
- rubber vulcanisation
- sintering
- laser cutting
- surface grinding
Fitment notes
Check whether the mounting points on your market version match the catalogue drawing — regional variants are the usual cause of a wrong first order.
Where it is used
The load rated version build is the one most often ordered for delivery fleets. Riders also fit it for off-road trails, weekend riding, urban courier work, motocross.
Ordering
- Confirm the model year and frame number before ordering.
- Approve a sample made from the actual bulk material.
- Fix the packing and marking at quotation stage.
- Book inspection before the balance payment, not after it.
Questions buyers ask
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 2000 pieces per line.
What happens if a lot fails inspection?
The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.
What is the minimum order quantity?
The standard MOQ is 2000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
Can you match an existing sample?
Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.
Send the specification you are working to and we will confirm what we can match, what we would change and why.
