Nominal travel
The up-and-down adjustment distance of the gas lift, often expressed as 60 mm, 80 mm, 100 mm or 120 mm.
Use this guide to prepare a precise quotation request for Class 3 and Class 4 office chair gas lifts. The more complete your RFQ is, the faster SMT can confirm model scope, certification direction, sample plan and export quotation.
Fast RFQ checklist
Office chair gas lifts look simple, but quotation accuracy depends on class, dimensions, force and the chair structure. A drawing or sample photo is always helpful.
Common sourcing data
Final specification must be confirmed by drawing, sample, chair geometry and applicable certificate scope. These ranges help purchasing teams describe their requirement clearly.
| Item | Typical buyer wording | Why it matters |
|---|---|---|
| Class | Class 3 or Class 4 office chair gas lift | Defines the engineering route and certificate review direction. |
| Stroke | 60 mm, 80 mm, 100 mm, 120 mm or custom stroke | Controls seat height adjustment range and chair ergonomics. |
| Dimensions | Extended length, outer tube diameter, pressure tube and piston rod | Ensures compatibility with chair base, mechanism and cover. |
| Force | Usually quoted in N, such as 350 N, 400 N or 450 N | Affects lifting feel, return speed and user weight range. |
| Finish | Black coating, QPQ, chrome or hard-chrome route | Impacts appearance, corrosion expectation and buyer specification. |
| Marking | SMT marking, customer brand or OEM private code | Supports brand programs, batch traceability and after-sales review. |
How to read a gas lift drawing
The up-and-down adjustment distance of the gas lift, often expressed as 60 mm, 80 mm, 100 mm or 120 mm.
The total length when the gas lift is fully extended. It affects final chair height and package geometry.
Outer tube, pressure tube and piston rod dimensions need to match the chair base and mechanism design.
Extension force is measured in Newtons. It should be selected based on seat structure and target user range.
Packing and loading reference
Loading plans vary by final model weight, carton dimensions and shipping rules. The following data is useful for early logistics calculation.
| Logistics item | Reference data | Buyer note |
|---|---|---|
| Standard carton | 20 pcs regular office chair gas lifts per carton | Final carton plan depends on product length and customer packaging. |
| Pallet quantity | About 2,000 pcs per pallet | For early loading calculation; final packing list confirms exact quantity. |
| Pallet weight | About 1.7-1.8 tons per pallet | Weight depends on model, class and tube configuration. |
| Pallet size | 1.1 × 1.1 × 1.65 m, about 1.9965 m³ | Useful for freight forwarder volume estimation. |
| Container plan | About 10 pallets per container as a planning reference | Final loading must follow container payload and shipping safety rules. |
Lead time and samples
Gas lifts require production control, testing and static storage before shipment. For new customized orders, Samiktech normally plans around one month of production time; OEM projects may require additional preparation time for marking and packaging.

Documents for supplier review
For office chair maintenance companies, chair factories and public procurement projects, supplier documents often matter as much as the unit price.
Class 3 and Class 4 certified configurations available by certificate and model scope.
Third-party test reports can support selected buyer review requirements.
Factory, R&D, production and quality-control review documents support due diligence.
Marking, production records and outgoing inspection support repeat orders and after-sales review.
Copy-ready inquiry template
Keep a PDF version for your sourcing team, engineering team or purchasing meeting.