Factory Direct Wholesale Folding Sofa Bed Hinge Mechanism (BLS-SBH180)
Looking for a reliable high-volume manufacturer of the folding sofa bed hinge mechanism? BLS Hardware designs and manufactures the BLS-SBH180 heavy-duty spring-loaded scissor hinge, specifically engineered for convertible futon sofas, multi-functional folding daybeds, and click-clack couch-to-bed furniture systems.
For custom furniture manufacturers sourcing complete motion and joining hardware from a single verified factory, explore our full wholesale range of Heavy-Duty Sofa Hinges & Ratchet Mechanisms.
Technical Specifications: Folding Sofa Bed Hinge Mechanism (BLS-SBH180)
| Engineering Parameter | Specification Details |
|---|---|
| Model Number | BLS-SBH180 (Scissor Spring Linkage Series) |
| Product Classification | Multi-Position Folding Sofa Bed Hinge Mechanism |
| Kinematic Operation | Spring-Assisted 3-Stage / 180° Fold-Flat Articulation (Sofa / Lounge / Bed) |
| Material & Thickness | Heavy-Duty Q235 Cold-Rolled Carbon Steel (Bar Thickness: 3.0mm / 3.5mm) |
| Counterbalance Spring | High-Tension Manganese Alloy Steel Coil Extension Springs |
| Surface Finish | Corrosion-Resistant Blue-White Zinc Plating (Passed 48-Hour Salt Spray Test) |
| Dynamic Load Rating | Supports sleeper frame assemblies up to 250 kg (550 lbs) |
- Need a full metal slatted frame instead of folding hinges? Check our Telescopic Pull-Out Sofa Bed Mechanism Frame.
- Building an under-seat sliding trundle? Explore our Hidden Telescopic Sliding Sofa Bed Mechanism.
- Adding 360-degree rotation to living room seating? View our Heavy-Duty Swivel Base Plate (BLS-SP08).
- Consult our technical Hardware Engineering Guide for pivot hole placement.
Why Furniture Factories Choose the BLS-SBH180 Scissor Hinge System
In high-volume convertible futon manufacturing, weak scissor hinges frequently suffer from joint play, bent linkages, and loud creaks. Our folding sofa bed hinge mechanism is built to eliminate these failure points:
- Effortless Spring Counterbalance: The calibrated extension springs absorb the heavy gravitational pull of the cushioned backrest, allowing smooth one-handed conversion from seated sofa to 180° flat bed.
- Heavy-Gauge Linkage Bars: We stamp our linkages from 3.0mm–3.5mm structural carbon steel rather than standard 2.0mm sheet metal, ensuring the bed never sags or twists when two adults sleep on it.
- Precision Cold-Headed Rivets: Heavy-duty solid steel pivot rivets are machine-pressed with calibrated tolerances, eliminating lateral joint slop while guaranteeing silent rotation.
Frequently Asked Questions (Furniture Procurement & Design)
Q1: What are the primary operating positions of the BLS-SBH180 folding sofa bed hinge?
A: It typically features 3 functional positions: 1) Upright Seated Sofa (approx. 105°–110°); 2) Reclined Relaxing Lounge (approx. 135°); and 3) 180° Fold-Flat Bed position.
Q2: Can BLS Hardware customize the spring tension for different cushion weights?
A: Yes. We can adjust spring coil wire diameters and overall tension lengths to accommodate lightweight foam futon cushions or heavy pocket-spring upholstered backrests.
Q3: What is the wholesale packaging specification for container shipping?
A: Packaged 1 pair per protective inner bag with springs attached, 20 pairs per 5-ply export master carton, strapped onto wooden pallets for secure ocean freight dispatch.
[Request a Free Quote and Technical Catalog]
WhatsApp Inquiry: Click to Chat: +8613827521875
Email Support: ZK-ZhengKai@outlook.com
Discover More: Explore our full Sofa & Bed Mechanism Collection
