# Heavy-Duty 230mm Sofa Backrest Armrest Mechanism (BLS-230)
The **BLS-230 Sofa Backrest Armrest Mechanism** (widely referenced in European and CIS manufacturing as *механизм перемещения спинки и подлокотника*) is an engineered dual-curved shifting linkage designed for premium deep-seating sofas, transformable lounge couches, and modular daybeds.Furniture factories worldwide rely on this sofa backrest armrest mechanism to deliver flexible seating configurations.
Manufactured by **BLS Hardware** in Guangdong, China, the BLS-230 enables smooth, manual articulation that allows users to shift the sofa backrest backward to create an extended lounging seat deck, or forward for upright ergonomic lumbar support.
Heavy-Duty 230mm Sofa Backrest Armrest Mechanism (BLS-230)
The BLS-230 Sofa Backrest Armrest Mechanism (widely referenced in European and CIS furniture manufacturing as механизм перемещения спинки и подлокотника) is an engineered dual-curved shifting linkage designed for premium deep-seating sofas, transformable lounge couches, and modular functional seating. Manufactured by BLS Hardware in Guangdong, China, this mechanism provides smooth, multi-position movement for adjusting backrest depth and armrest elevation.
BLS-230 Technical Specifications
| Model Number | BLS-230 |
| Product Category | Sofa Recliner Mechanisms / Sofa Shifting Hardware |
| Primary Material | Thickened Q235 structural steel |
| Pivot Fasteners | Solid cold-forged steel rivets (high shear resistance) |
| Articulated Stroke / Height | 230 mm shifting travel |
| Surface Treatment | Mirror chrome curved linkage arms with matte black electro-coated mounting brackets |
| Primary Applications | Sofa backrest depth shifting, wide armrest angle adjustment, functional deep lounge seating |
| Manufacturing Origin | Guangdong, China |
Key Structural & Functional Features
- Dual-Curved Linkage Geometry: Engineered curved linkage arms allow smooth clearance around internal sofa wooden frames and high-density upholstery foam.
- Heavy-Duty Q235 Steel Construction: Stamped and assembled from high-grade structural steel to eliminate flexing and lateral wobble under repeated seating pressure.
- High-Wear Cold-Forged Rivets: Precision-riveted joints maintain tight mechanical tolerances, preventing loosening or squeaking over long-term operation.
- Dual-Finish Corrosion Protection: Premium decorative chrome plating on visible linkage bars combined with rust-inhibiting matte black base plates.
Why Source Functional Sofa Mechanisms from BLS Hardware?
As an established sofa hardware manufacturer, BLS Hardware supplies complete hardware suites to overseas furniture factories—spanning functional shifting hinges, adjustable aluminum sofa legs, and sofa bed mechanisms. We support OEM/ODM custom mounting hole dimensions, custom arm strokes, and export packaging.
Request Factory Quotation & Technical Drawings
Contact our engineering sales team with your target order volume, required mounting dimensions, and destination port:
- Email: ZK-ZhengKai@outlook.com
- WhatsApp: +86 138 2752 1875
- Location: Guangdong, China
