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Automotive Electric Adjustable Front Seat Backrest Steel Frame Assembly
This steel frame assembly is engineered as the core load-bearing structure for power-adjustable front seat backrests in passenger vehicles. Integrating an electric recliner drive, high-strength tubular steel frame, and S-shaped spring suspension grid, it relies on dual DC motors to achieve stepless electronic backrest angle adjustment. Designed to assemble with cushion foam and PU foam backrests, it fits ICE and new energy vehicles for OEM production and aftermarket retrofits.
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Main Perimeter Frame
Q235 cold-rolled seamless steel tubing, wall thickness 1.2 to 1.5 mm; One-piece bent and fully welded; Full electro-coating anti-rust treatment for corrosion resistance in humid vehicle environments.
S-Type Support Springs
High-carbon manganese spring steel wire, wire diameter 3.2 to 3.8 mm; Heat-treated, quenched, and tempered; Long-lasting elasticity, anti-fatigue tension, and resistant to slack or deformation.
Recliner Mechanism Main Unit
Die-cast alloy steel gear set components with high-strength stamped shell casing; Mechanical pawl ratchet locking structure.
Buffer Sleeves
EPDM aging-resistant rubber; Resistant to high and low temperatures, wear-resistant, and anti-aging; Prevents metal-on-metal friction noise.
Actuation System
Dual-side independent geared DC motors; Rated working voltage DC 12V (standard vehicle voltage).
Adjustment Speed
Single full reclined-to-upright transit time 4 to 7 seconds; Smooth operation without jerking or shock.
Self-Locking Performance
Mechanical pawl locks automatically upon motor power shutoff; Withstands 1500 N backrest pressure without slipping or angular displacement.
Control & Memory Support
Side-seat physical button controls; Supports vehicle seat position memory expansion.
Motor Service Life
Cumulative operating cycles 15000 or higher start-stop adjustments without failure.
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Key Features & Selling Points:
- High-Strength Tubular Frame & Spring Grid: Built from electro-coated Q235 steel tubing (1.2 to 1.5 mm wall thickness) and heat-treated high-carbon spring wire, providing a rust-proof foundation that resists fatigue and sagging.
- Smooth Dual-Motor Stepless Adjustment: Features dual independent 12V DC gear motors delivering smooth, jerk-free angle adjustments across a wide 95 to 170 degree range within 4 to 7 seconds.
- Reliable Pawl Self-Locking Safety: Equipped with die-cast alloy steel gears and a mechanical pawl lock that holds firm under up to 1500 N of backrest pressure upon power shutoff.
- Quiet Operation & Anti-Friction Protection: Integrated EPDM rubber buffer sleeves isolate metallic contact points to eliminate squeaks and operational noise.
- Long Service Life & Memory Compatibility: Rated for over 15000 operational cycles and fully compatible with vehicle memory seat module integration.
