Movement
The back movement provides transitions between standard seating, deep seating and a single-bed position in a three-seat sofa.
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CSS 4
Provides standard seating, deep seating, and a single bed option in three-seat, two-seat, and single-seat modules. Three States of the Sofa: Standard Seating, Deep Seating, Bed. Specially designed screws that do not damage fabric or leather.
Product use
Furniture application
Three-seat, two-seat and single-seat sofa modules with round short- or standard-trim options in plastic or zamak.
Product highlights
- The back mechanism provides standard seating in the first function.
- The practical recline of the back mechanism offers maximum comfort with seating depth and allows for a single bed option.
- Offers the possibility of using fixed or removable back cushions in your designs.
- Provides maximum sales potential with minimal mechanism cost.
- Quick and economical application ease with 40% less screw usage.
Assembly dimensions and references
- Assembly reference
- Use the product technical drawing for mounting holes, connection direction and component position.
Technical Information
Product Code
CSS-4 YUVARLAK
Product Name
CSS 4 Hareketli Sırt Aparatı
Mechanism Size (cm)
-
Bed Size (cm)
-
Variant Options
Round / Short Trim / Zamak
Round form with short trim and zamak surface option.
Round / Standard Trim / Plastic
Round form with standard trim and plastic surface option.
Round / Standard Trim / Zamak
Round form with standard trim and zamak surface option.
Technical PDFs and documents
CSS mechanism comparison
Core movement, variant and assembly differences within the same product family.
| Comparison | CSS 2 | CSS 3 / CSS 3 ECO | CSS 4 | CSS 4 ABS |
|---|---|---|---|---|
| Core movement | Standard + deep seating; single bed in three-seat sofa | Standard + deep seating; single bed in three-seat sofa | Standard + deep seating; single bed in three-seat sofa | Standard + deep seating; single bed in three-seat sofa |
| Variant | Short-trim option | Standard, stop/stepped, eco, eco short trim | Round; short/standard trim; plastic/zamak | Round ABS |
| Assembly feature | Standard application per technical drawing | Standard or stepped application by variant | Structure designed for 40% fewer screws | Single-screw assembly; suitable for knock-down shipment |
Technical guides
Knowledge Center content for this product
Manufacturing and Quality
Why do powder coating and surface finishing matter in metal mechanisms?
Corrosion resistance, surface quality, chemical cleaning and robotic powder coating processes for sofa and furniture mechanisms.
CSS MechanismsWhat should be considered when selecting a CSS sofa-bed mechanism?
Seat-bed function, frame compatibility, opening ergonomics and production-line assembly criteria for CSS mechanisms.
Manufacturing and QualityWhat do robotic welding and powder coating provide in Erhun manufacturing quality?
Robotic welding, manual welding, surface preparation, electrostatic powder coating and quality continuity in metal mechanism production.
CSS MechanismsDifferences between CSS 2, CSS 3 and CSS 4
Shared functions, variants and serial-production selection criteria for CSS back mechanisms.
Assembly and ProductionCommon furniture mechanism assembly errors
Alignment, fastener, left-right orientation, upholstery allowance and function-control errors in serial production.
Care and UseCare and use of furniture mechanisms
Connection checks, cleaning, moisture protection, motion testing and situations requiring service.
SAME PRODUCT GROUP
CSS Mechanisms
Compatible or alternative products
CSS 2
CSS Mechanisms
In triple, double, and single modules, besides standard seating, deep seating and a single bed are available for the triple modules. Standard Seating - Deep Seating - Bed.
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CSS 3 / CSS 3 ECO
CSS Mechanisms
In triple, double, and single modules, in addition to standard seating, deep seating and single bed options are available for the triple modules. Standard Seating - Deep Seating - Bed.
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CSS 4 ABS
CSS Mechanisms
Provides standard seating, deep seating, and a single bed option in three-seat, two-seat, and single-seat modules. Three States of the Sofa: Standard Seating, Deep Seating, Bed. Specially designed screws that do not damage fabric or leather.
View DetailsManufacturer contact