25,000㎡
Factory, Est. 2009
150–180
R&D / Production / QC Staff
10+
Granted Utility Patents
120+
Global Trade Partners
Powered Reclining Mechanism Assembly
Powered Reclining Mechanism Assembly
Electric and manual reclining mechanisms are metal-stamped, then fatigue-tested against the 2876U benchmark: 25,000 full extension cycles at a 360 lb distributed load. Single-motor, dual-motor, and Zero-Wall Recline configurations run through the same test gate, so a hotel-spec unit and a residential unit share identical mechanism tolerances.
Fixed-Frame Fabric & Leather Upholstery
Fixed-Frame Fabric & Leather Upholstery
Fixed-frame sofas use kiln-dried hardwood or steel-reinforced frames , then upholstered in SGS-certified fabric or top-grain leather. As a custom sofa manufacturer serving hospitality and wholesale buyers, we hold frame joints to a documented racking-load spec before foam and upholstery go on, so a frame fault is caught before the container ships.
Modular & Knock-Down Sectional Systems
Modular & Knock-Down Sectional Systems
Modular sectional and L-shaped frames use a patented tool-free connector system, cutting shipping cube by roughly 30% against fixed-frame equivalents and reassembling on-site without hardware loss. Each module ships pre-fitted and numbered to its floor-plan position, reducing on-site assembly error across multi-unit hotel and serviced-apartment installs.
Contract-Grade Hospitality & High-Cycle Seating
Contract-Grade Hospitality & High-Cycle Seating
Contract seating for hotels, cinemas, and clubhouses is built around Split Independent Backrest mechanisms and reinforced base frames rated for continuous public-use cycling rather than residential duty. Foam density and fabric abrasion rating are specified above household-grade minimums before a project quote is issued.
JSC — Jiu Sheng Chen International Trading Co.,
Hotline 24/7
+852 5166 0938
The Factory Behind the Trade Desk
Huizhou Ramson Technology operates a 25,000-square-meter facility in Huizhou, Guangdong, established in 2009 and organized around four production lines with combined monthly output near 80 containers. A team of 150 to 180 people covers R&D, frame fabrication, upholstery, and quality control inside one building, so a sample approved on the factory floor is produced on the same line that ships the mass-production order — not handed to a subcontracted workshop.
Certificate Introduction
Certification is grouped by material and electrical compliance rather than presented as one blanket claim. Materials carry CARB P2 formaldehyde limits, FSC forest-sourcing certification, and GB 8410 A-0 fire-retardant foam rating. Electrical assemblies are certified via Shenzhen CTL Testing Technology to CE-LVD (EN IEC 60335-2-32:2021) and CE-EMC (EN IEC 55014-1/-2), screened under RoHS 2.0 and REACH SVHC's 247-substance list, and carry FCC SDoC under Part 15 Subpart B for North American import — the certification stack a custom sofa manufacturer needs on file before a container clears customs.
Featured Products
Six Verticals, Six Different Modes
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HOSPITALITY
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MEDIA ROOM
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CORPORATE
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RESIDENTIAL
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CARE FACILITY
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RETAIL
Six Controlled Steps, Raw Material to QC-Passed Unit
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01CUT
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02FILL
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03CUT
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04STITCH
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05TEST
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06PROTECT
For leather options: genuine leather including water buffalo hide and yellow cowhide in various thicknesses.
We also supply PVC materials of different thicknesses. Custom-made production is available according to clients' requirements. More About..
Anti-cut cardboard inserted prior to carton sealing
Pre-loading container inspection
Desiccants equipped for humid containers
Fumigation certificate available for wooden packing
Documents consistent with actual goods for smooth customs clearance
Cover normal-wear components only
Extra spare parts subject to parts cost and shipping fee
Frequently Asked Questions
Q1: Is Ramson a different company from JSC?
No. Ramson is not a separate registered company—it is the brand name under which Jiu Sheng Chen International Trading Co., Limited, the manufacturing arm of JSC (Jiu Sheng Chen International Trading Co., Limited, Hong Kong, Reg. No. 77029037), presents its factory-direct engineering and OEM/ODM capability to overseas buyers. Huizhou Ramson Technology owns the 25,000-square-meter factory, the production lines, and the patent portfolio, and carries responsibility for design, sampling, and quality control. Every contract, quotation, invoice, and after-sales claim tied to an inquiry made through this page is still issued by JSC, under the same founder and controller, Gigi_Xie — there is no third-party subcontracting and no separate legal entity behind the Lamason brand.
Q2: Can we engage the factory directly through this page, instead of JSC's main site?
Yes — that is what this page is for. Qualified overseas buyers with contract-manufacturing or private-label requirements can use this page to review production capability, mechanism test data, and certification scope before requesting a quote, then route the inquiry to the same JSC team that handles standard trade orders. This path generally suits buyers placing recurring bulk orders who want to evaluate factory engineering directly. Smaller or first-time orders are equally welcome here; they follow the identical quotation, documentation, and after-sales process described on JSC's main site, since both paths end at the same contracting entity.
Q3: How long do the recliner mechanisms actually last?
Our 2876U mechanism series passed independent SGS fatigue testing at a 360 lb distributed load across 25,000 full extension-and-retraction cycles, with no structural damage, abnormal noise, or functional loss recorded at the end of the test. Translated into daily use, 25,000 cycles works out to roughly 13-plus years at typical household reclining frequency, and considerably less under continuous hotel or public-seating traffic—which is why contract-grade projects add reinforced base frames on top of the same tested mechanism rather than relying on the mechanism rating alone. Full SGS test reports are available on request for a buyer's own compliance file.
Q4: Are the electric recliners CE-certified for the EU?
Yes. Powered mechanisms are certified via Shenzhen CTL Testing Technology to CE-LVD under EN IEC 60335-2-32:2021 (read together with EN 60335-1) and CE-EMC under EN IEC 55014-1 and 55014-2. Units are also RoHS 2.0 compliant across all restricted substances, including the four regulated phthalates, and screened under REACH SVHC against the current 247-substance candidate list with no substances detected above threshold. For North American orders, electronics carry FCC SDoC under Part 15 Subpart B. Certificate copies and test reports are issued alongside shipment documentation as standard, not held back for a separate request after delivery.
Q5: What's the MOQ and lead time?
The standard minimum order quantity is one 40HQ container. Sampling typically takes 7 to 14 days from a confirmed technical brief, and mass production runs 30 to 45 days depending on configuration, fabric sourcing, and order volume. Buyers combining several product lines or custom mechanism variants in one container should expect timing toward the upper end of that range, since mixed-configuration orders require additional QC checkpoints between product types. A production schedule with committed dates is issued at the quotation stage, before deposit, so lead time is confirmed upfront rather than estimated after the order is already placed.
Q6: What happens if we receive defective units?
Verified manufacturing defects reported within the agreed claim window are covered under a defined compensation process rather than handled case by case. This typically includes replacement parts or components for the affected units, drawn from the same spare-mechanism and actuator supply used for after-sales support. Claims are assessed against the bill of materials and certification scope confirmed at the quotation stage, so a defect is checked against the original order specification rather than a general warranty statement. Buyers should raise a claim with photos and batch reference numbers early, since claim windows run from the shipment date, not the date of use.
Contact Information
Jiu Sheng Chen International Trading Co., Limited
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Email:
jscsofa@jsc-furniture.com
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Tel:
+852 5166 0938
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Whatsapp:
852 5166 0938
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Address:
Room A17, 29/F, Ning Jin Centre, 7 Shing Yip Street, Kwun Tong, Kowloon, Hong Kong
Request a Quote & Free Sample
Reach out to our team for inquiries, quotations, or cooperation opportunities.
Tell us your target market, product category, and order volume, and we'll confirm which certification package — CE, RoHS, REACH, FCC, or SGS — applies to your configuration before you commit to a sample. Include destination country and mechanism type if known; if not, our engineering team will recommend one based on your use case. Typical response time is within one business day, with test reports and patent documentation available on request from our custom sofa manufacturer engineering team.
Latest News
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Sep 15, 2026Flip Headrest Sofa Devices: Space-Saving Design For Multi-Use Living SpacesJSC holds CNIPA Utility Model Patent ZL 2024 2 1386652.9 for a sofa flip headrest device. Learn how flip-away headrests save space, enable multi-use furnitur... -
Sep 15, 2026Swivel Sofa Base Locking Mechanisms: A Procurement Engineer's GuideJSC holds CNIPA Utility Model Patent ZL 2024 2 1194119.2 for a rotary disc locking mechanism used in swivel sofas. This procurement engineer's guide covers s... -
Sep 07, 2026Temperature-Controlled Sofa Seat Cushions: Engineering Year-Round Thermal ComfortJSC holds CNIPA Utility Model Patent ZL 2022 2 2458550.0 for a sofa with a temperature-controlled seat cushion. Explore the thermal-comfort engineering, heat...







