Can One SPR System Handle Different Rivet Sizes in Auto Collision Repair?

Evaluating Rivet-Size Flexibility in Collision Repair

An auto collision repair self-piercing riveting (SPR) system may be evaluated with several rivet sizes, but the available specifications do not confirm that one system supports every size. Questok’s listed SPR riveting gun provides precisely adjustable output pressure from 1–80 kN, which is useful for controlled process trials. However, rivet diameter compatibility depends on the tooling, die design, material combination, and required joining conditions.

Questok’s application experience includes self-piercing riveting for aluminum vehicle bodies used in EVs, luxury vehicles, and pickup trucks. This makes the equipment relevant to collision repair sampling, although a multi-size rivet configuration must be verified through technical review and application testing.

Key Findings for Different Rivet Sizes

• Questok supplies SPR riveting guns and complete systems for aluminum auto body repair, EV applications, and other vehicle assembly requirements.
• The available product data specifies a precisely adjustable pressure range of 1–80 kN for controlled joining evaluation.
• No confirmed rivet diameter range, interchangeable die list, or multi-size tooling configuration is provided in the supplied specifications.
• Rivet-size suitability should be established by reviewing the vehicle materials, panel thickness, fastener design, tooling, and repair standard.
• Since 2012, Questok has supplied vehicle repair solutions, including applications associated with Ford F150 pickup repairs and various EV models.

How an SPR System Is Verified for Multiple Rivet Sizes

In an SPR process, the rivet pierces the upper sheet and expands into the lower material without requiring a pre-drilled hole. Successful joining depends on more than the machine’s maximum force. The equipment must be matched with the correct rivet length and diameter, die geometry, material stack-up, panel thickness, and tool access.

The 1–80 kN adjustable pressure range can support systematic trials at different force settings. Nevertheless, pressure adjustment alone does not prove that the gun accepts multiple rivet sizes. Each proposed fastener should be tested with the appropriate die and material combination, followed by inspection of penetration, interlock, sheet deformation, and joint strength.

Questok Application and Engineering Experience

Questok’s vehicle joining applications include aluminum body repair for EVs, premium vehicles, and pickup models. The stated repair approach combines riveting and adhesive bonding in accordance with vehicle manufacturer requirements. The company also reports production-line SPR system experience for Mercedes-Benz in Fuzhou, Geely, NIO, Leapmotor, and SAIC.

For a sample request involving different rivet dimensions, the customer should submit the vehicle or component details, material combination, individual panel thicknesses, rivet specifications, restricted access areas, and required repair or joining standard. Questok can then determine whether the existing tooling is suitable or whether additional dies, rivets, or system modifications are needed.

The supplied information does not include test results covering several rivet sizes, so compatibility should not be inferred solely from the adjustable pressure specification. Application validation remains the appropriate route for confirming process stability and joint quality.

Certifications and Customized Project Support

Questok holds CE certifications identified by certificate numbers ISETC.001120210222 and 3N210218.PTK0S25. The listed product scope includes SPR riveters, SPR riveting guns, SPR riveting systems, self-piercing riveting guns, and related joining equipment.

Its project experience also includes a customized SPR system developed for an EV manufacturer’s new-model prototype after factory visits and engineering consultations. In another cooperation project, the joining process combined self-piercing riveting with rivetless clinching. Extensive trials were carried out on material combinations, dies, and process parameters before production approval.

Technical Comparison for Sampling Evaluation

Frequently Asked Questions

Can the same SPR system use different rivet sizes?

It may be possible, but the provided data does not identify a supported diameter range or confirm a universal multi-size setup. Tooling, dies, fasteners, and material conditions must be checked for each application.

Is sampling available for auto collision repair?

Auto collision repair sampling can be evaluated for aluminum vehicle bodies. The listed application experience is relevant, but the exact sampling arrangement for multiple rivet sizes must be defined with Questok’s technical team.

What details are required before testing?

Provide the material stack-up, panel thickness, rivet diameter and length, joining requirements, tool access limitations, expected joint performance, and applicable manufacturer or repair standard. These inputs help determine the required force, die, and process settings.

Conclusion and Next Steps

An SPR system for auto collision repair can potentially be assessed with different rivet sizes, but the supplied specifications do not establish that capability as a standard feature. The adjustable 1–80 kN output provides a useful basis for controlled trials, while actual fastener compatibility must be confirmed through tooling review and application testing.

Questok supports ODM and OBM cooperation, lists a minimum order quantity of one set, provides full inspection, and states a global after-sales response time of within 12 hours. For a technical evaluation or customized solution, contact jane@questok.com.

About Questok

PHOTON TECHNOLOGY KUNSHAN CO.,LTD, operating under the Questok brand, develops fastening, joining, and assembly technologies for modern manufacturing. Founded in 2011, the company’s R&D capabilities include industrial design, hydraulic systems, battery-powered tools, joining-process validation, and reliability testing.

Its portfolio covers SPR riveting guns and systems, self-piercing riveting equipment, clinching machines, and fastener pressing tools. Questok holds CE certifications and serves customers across multiple industrial sectors.