The lockable gas spring is used to adjust the backrest angle of the office chair, and can be adjusted to a suitable angle as needed. The lockable gas spring is a perfect combination of high performance and versatility, designed with an internal oil and gas dual-lock system that allows it to stop precisely at any position for effortless height adjustment. This makes it suitable for a wide range of applications, including office chairs, rocking chairs, hairdressing chairs, passenger seats, and hospital beds. Featuring a sealed piston structure, this gas spring is easy to install and operate without the need for complex adjustments or ongoing maintenance, providing users with a hassle-free experience. It delivers outstanding support strength, ranging from 450N to 1200N, ensuring it can meet various weight requirements while maintaining long-lasting stability and safety. Whether it’s the precise and delicate adjustments required for hairdressing chairs or the comfort and durability demanded by passenger seats, this gas spring excels in every scenario. Furthermore, it offers smooth and quiet motion, with highly responsive locking for an exceptional control experience. These features not only enhance the ergonomic design and comfort but also ensure reliable performance over time.
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1：Diagram
2：Manufacturing specs
| Type. | Cylinder(Φ) | Piston Rod(Φ) | Stroke(mm) | Force(N) |
| Lock | 22 | 10 | 20-250 | 200-700 |
| 27 | 10 | 20-250 | 200-1000 | |
| 27 | 12 | 40-350 | 450-1200 | |
| 27 | 14 | 40-400 | 450-1200 |
3：The special feature and characteristic of the products
a. A principle of operation.
Each spring is easy to adjust to desired position.
b. Characteristics of the product.
1. Easy to install
2. Easy to use
3. No step adjustment
Stop and locking can be set at arbitrary by opening and locking the internal oil(gas)
4：A Principle of operation
It is possible to stop at any position and be locked by move of inner oil(gas)
1：In case of having Free Piston
2：Encapsulated Piston
5：Limits of the products
Office chairs，rocking chairs，chairs for the beauty parlors，passenger seats，hospital beds.
Gas Spring-Lock Type Hairdressing Chairs
| Model No. | S(mm) | L(mm) | B | A | F1 |
| JKQ40 | 43 | 235 | Φ10 | Φ27 | 550N |
| JKQ60 | 60 | 280 | Φ10 | Φ27 | 400N |
| JKQ80 | 80 | 370 | Φ10 | Φ27 | 400N |
| JKQ100 | 100 | 395 | Φ10 | Φ27 | 400N |
Note:
1. Shown on the lists are the minimum sizes we can normally produce.
2. Other sizes are also available Please contact us for further information.
| 1) LOCKING |  |
1) LOCKING |  |
| 2) UNLOCKING |  |
2) UNLOCKING |  |
| 3) RELOCKING |  |
3) RELOCKING |  |
Located in Changzhou City, which is on the Yangtze River, a highly developed economic zone in Eastern China. ADF has developed gas springs and cylinders for seating, automotive, and other consumer and industrial appliances. Our company operates an advanced automatic products line and testing equipment and also has excellent staff, experienced managers, and technical staff.
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