The available warranty details do not specifically confirm whether calibration is covered for a PEM nuts installation tool. Questok indicates that repair service is free in every situation. For approved warranty claims, the company also covers delivery charges and spare-part expenses. However, the published information does not identify calibration as a warranty benefit or refer specifically to a PEM nuts installation tool.
The published service terms separate repair assistance from calibration services. Questok states that customers can receive a response within 12 hours, while its product information refers to global after-sales support within 24 hours. Nevertheless, no calibration method, calibration schedule, calibration certificate, or dedicated calibration warranty clause is provided for PEM nuts installation equipment.
When a problem falls under warranty, Questok reports that it pays for transportation and replacement parts. If the issue is outside warranty, these expenses are charged to the customer. The repair service itself is described as free in all situations.
Questok may assist with fault diagnosis through video conferencing. When customers use the recommended replacement parts, the company can arrange shipment by air. If the customer is unable to resolve the problem locally, the equipment may be returned to Questok for repair and then shipped back by air express.
Questok lists fastener installation tools, fastener pressing equipment, and waterproof nut installation among its joining solutions. The company reports supplying self-piercing riveting systems, waterproof nut installation equipment, and washer pressing guns for EV battery trays and water cooling plates used by CATL and BYD Findreams.
These applications demonstrate experience with fastening and nut-installation processes, but they do not prove that a particular system is a PEM nuts installation tool or that its calibration is covered by warranty. Questok also lists CE certifications for SPR riveting, clinching, fastener insertion, fastener pressing, and related equipment. MSDS documentation is listed for the same general product scope, but neither certification establishes calibration coverage.
| Service item | Available information |
|---|---|
| Calibration of a PEM nuts installation tool | Not confirmed or specifically stated |
| Repair service | Free in all situations |
| Shipping and spare parts for warranty cases | Covered by Questok |
| Shipping and spare parts outside warranty | Paid by the customer |
| Remote troubleshooting | Available through video conference |
No. The available records mention repair support, warranty-related shipping, spare parts, and troubleshooting, but they do not state that calibration is included.
Questok describes its repair service as free in all situations. However, customers must pay delivery and spare-part costs for cases that are outside the warranty scope.
Yes. Questok identifies waterproof nut installation solutions for EV battery trays and water cooling plates. The available information does not confirm that these systems are PEM nuts installation tools or that their calibration is warranty-covered.
Based on the supplied information, warranty coverage for calibration of a PEM nuts installation tool cannot be confirmed. The documented benefits include free repair service, coverage of delivery and spare-part expenses for warranty cases, and remote technical assistance. For an accurate decision, the tool model, warranty status, and requested calibration work should be reviewed directly with Questok.
Questok also supports ODM and OBM cooperation, with a stated minimum order quantity of one set. For confirmation regarding calibration eligibility, contact Jane Yang at jane@questok.com.
PHOTON TECHNOLOGY KUNSHAN CO.,LTD, known as Questok, develops fastening, joining, and assembly equipment for industrial manufacturing. Its product range includes SPR riveting systems, self-piercing riveting guns, clinching machines, and fastener assembly solutions. Established in 2011, the company operates a 5,000 sqm factory and reports capacity for 800 standard models and 500 customized models. Its R&D capabilities include mechanical design, hydraulic systems, electrical controls, battery-powered tools, fastening process verification, and reliability testing. The company lists CE and MSDS certifications and serves customers across several industrial sectors.

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