Bus Chair Strut: Selection Guide for Vehicle Seating
Bus Chair Strut: Selection Guide for Vehicle Seating
DK Gas spring provides targeted bus chair strut solutions for vehicle seating systems. This guide focuses on key information for selection，including specifications, types, and selection criteria.
What Are Bus Chair Struts?
A bus chair strut is a specialized gas spring designed for bus/coach seats, supporting adjustment, cushioning, and load-bearing. It uses compressed nitrogen to enable smooth movement and position retention, suitable for seat height, recline, and lumbar support adjustments.
Bus Chair Gas Spring Specifications
Choose models based on seating design requirements:
| MODE | LENGTH | STROKE | CYLINDER DIA | PISTON ROD DIA | MIN FORCE (N) |
|---|---|---|---|---|---|
| KQL001 | 250 | 40 | 22 | 10 | 100N |
| KQL002 | 300 | 70 | 22 | 10 | 150N |
| KQL003 | 350 | 100 | 22 | 10 | 150N |
| KQL004 | 400 | 140 | 22 | 10 | 250N |
| KQL005 | 600 | 240 | 22 | 10 | 100N |
| KQL006 | 800 | 300 | 22 | 10 | 200N |
| KQL007 | 200 | 40 | 27 | 10 | 100N |
| KQL008 | 200 | 40 | 27 | 10 | 200N |
| KQL009 | 280 | 100 | 27 | 10 | 350N |
| KQL010 | 330 | 100 | 27 | 10 | 430N |
| KQL011 | 360 | 140 | 27 | 10 | 350N |
| KQL012 | 400 | 100 | 27 | 10 | 200-900N |
| KQL013 | 500 | 120 | 27 | 10 | 200-900N |
| KQL014 | 600 | 200 | 27 | 10 | 100-500N |
| KQL015 | 800 | 300 | 27 | 10 | 200-900N |
| KQL016 | 900 | 350 | 27 | 10 | 200-1000N |
Clevis Specifications (for Installation)
| Item | Suitable for clevis | d1 h11 | a | b | 11 | 12 | 13 | Mass [kg] 100 pcs |
|---|---|---|---|---|---|---|---|---|
| SP4x8 | G4x8 | 4 | 9.5 | 11 | 19 | 15 | 4.5 | 0.145 |
Key Types for Selection
Locking Gas Springs
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Best for: Fixed-position seats (passenger seats, crew seats).
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Feature: Adjust to desired angle/height and lock securely, preventing movement during transit. Meet automotive safety standards.
Adjustable Gas Springs
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Best for: Frequent-adjustment seats (driver seats, luxury coach seats).
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Feature: Tool-free fine-tuning via lever/button, corrosion-resistant for daily use.
Dampers
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Best for: Vibration-prone routes (rural buses, off-road coaches).
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Feature: Pair with gas struts to reduce noise/vibration, using hydraulic dampers or shock absorbers for smoother rides.
How to Select the Right Strut
1. Load Capacity
Calculate total weight (seat + passenger). Choose from our compression gas springs (50N-2000N) to match load requirements.
2. Stroke Length
- Driver seats: Longer strokes (140-350mm) for wide-angle adjustments.
- Passenger seats: Shorter strokes (40-100mm) for fixed-range use.
3. Environmental Resistance
- Humid interiors: Choose corrosion-resistant coatings.
- Open-air buses: IP-rated seals to withstand weather exposure.
4. Locking Mechanism
For fixed positions, ensure reliable triggers (lever/button/cable) with smooth operation after repeated use.
Frequently Asked Questions (FAQs)
- What Causes Gas Springs to Malfunction? The entry of dirt and airborne particles can lead to long-term issues. As the piston rod extends, dirt accumulates on it and mixes with the oil and gas during compression.
- What is the Average Lifespan of Your Gas Springs? HXL ensures a prolonged lifespan for its locking gas struts. Our gas springs typically have a lifespan of 40,000 operations.
- How Should Gas Springs Be Maintained? Gas springs require minimal maintenance and do not need oiling or lubrication. They are designed to operate perfectly for many years and are always tailored to meet the specific requirements of their intended applications.
- Where Are Gas Springs Commonly Used? Currently, gas springs are extensively used in automotive interiors to support adjustable seats and tables, on various easy-open panels and hatches, and even in small electronic devices.
- Can Gas Springs Be Used Vertically? Ensure that gas springs are used at an angle no greater than 60 degrees from the vertical when incorporating them into a design. For the final few millimeters of the stroke, a significant damping effect can also be achieved by utilizing the oil within the gas spring.
- Do You Offer a Variety of Gas Springs? Absolutely. We have a diverse range of locking gas struts suitable for various applications. Please contact us to learn more about our extensive inventory of gas springs.
DK Gas spring Advantages for Selection
- Customization: Tailor adjustable/locking gas springs to your stroke, load, and mounting needs.
- Quality Data: 100% tested for pressure resistance/leakage, compliant with IATF 16949.
- Full Range: dampers, pneumatic actuators for complete seating systems.
Ready to select? Use the specifications and criteria above to match your needs, or contact our engineers for personalized recommendations.
DKGasspring: Precision gas struts for reliable vehicle seating.