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The 4502S series soft-close drawer slides are three-section full extension telescopic rails equipped with an integrated hydraulic damping mechanism that controls the final stage of drawer closing. Manufactured from cold rolled steel, each slide pair incorporates double-row steel ball bearings running within precision-formed raceways, combined with a damper cartridge that decelerates the drawer during the last portion of closing travel. This design prevents slamming and reduces impact forces on both the drawer contents and the cabinet structure.
This product range covers five nominal lengths from 250 mm (10 inch) to 450 mm (18 inch), with corresponding travel distances optimized for standard furniture drawer depths. Three material thickness configurations are available: 1.0×1.0×1.2 mm, 1.1×1.1×1.4 mm, and 1.2×1.2×1.5 mm. Standard surface treatments include electroplated blue zinc and electroplated black finishes. The rated load capacity ranges from 25 kg to 35 kg per pair, determined by the selected material thickness specification. These slides are specified across residential, commercial, and institutional furniture projects where controlled closing performance is required.
 | Hydraulic Damper SystemThe integrated soft-close mechanism uses a hydraulic cylinder mounted within the rear section of the outer rail. During the final 30-50 mm of closing travel, a linkage arm engages the damper, transferring the drawer's momentum into controlled hydraulic resistance. The drawer then completes its closing stroke at a reduced speed without impact. This damping function activates automatically on every closing cycle and requires no adjustment by the end user. |
Three-Section Full Extension StructureEach slide assembly consists of three interlocking steel members: an outer rail fixed to the cabinet, a middle rail that travels within the outer member, and an inner rail attached to the drawer side. This triple-rail configuration enables full extension, meaning the drawer travels outward to a distance approximately equal to the slide length, providing complete access to the drawer interior. Full extension design improves storage accessibility for deep drawers used in kitchen, office, and storage cabinet applications. |  |
Two parallel rows of solid steel balls are positioned within formed raceways on both the upper and lower edges of the middle rail. This dual-bearing arrangement distributes vertical and lateral loads across multiple contact points, supporting the rated 25-35 kg capacity while maintaining low-friction travel. The ball bearing design contributes to consistent sliding performance across repeated operation cycles in commercial and industrial furniture environments.
Parameter | Specification |
Model | 4502S |
Material | Cold rolled steel |
Finish | Electroplate blue zinc / electroplate black |
Rated load capacity | 25-35 kg per pair |
Length range | 250-600 mm |
Thickness options | 1.0×1.0×1.2 / 1.1×1.1×1.4 / 1.2×1.2×1.5 mm |
Extension type | Full extension (three-section) |
Mechanism | Integrated soft-close hydraulic damper |
Item no. | Nominal slide length (mm) | Slide length (mm) | Travel (mm) | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | F (mm) | G (mm) |
4502S-10" | 250 | 248 | 205 | — | — | 24.5 | 18.5 | 245 | 104.5 | 121.5 |
4502S-12" | 300 | 298 | 294 | — | — | 24.5 | 18.5 | 295 | 155.5 | 105 |
4502S-14" | 350 | 348 | 348 | 96 | — | 24.5 | 18.5 | 345 | 96 | 110 |
4502S-16" | 400 | 398 | 390 | 96 | — | 34.5 | 19 | 395 | 128 | — |
4502S-18" | 450 | 448 | 445 | 64 | — | 34.5 | 19 | 445 | 160 | — |
The overall slide profile height measures 45.3 ± 0.2 mm with a front profile dimension of 12.6 ± 0.1 mm. Mounting holes include elongated slots for installation adjustment. Key dimensional references marked on the technical drawing include dimensions A through G, representing hole positions and spacing values that vary by slide length as listed in the dimensional table. Side profile mounting hole spacing dimensions include 32 mm vertical centers with 19 mm and 16 mm reference offsets.
Furniture manufacturers specify these soft-close slides for kitchen cabinet drawers, pantry pull-outs, and vanity units where reduced closing noise is desired. In residential projects and multi-unit developments, the damping mechanism contributes to improved perceived quality and reduced noise transfer between rooms. The full extension feature supports deep drawer designs for cookware, cutlery, and food storage applications.
For office filing cabinets, desk pedestals, and storage units, soft-close functionality reduces workplace noise levels in open-plan environments. Educational institutions, healthcare facilities, and government offices also select damped drawer slides to maintain quieter operational environments. The 25-35 kg load range accommodates standard document storage, stationery, and office supply requirements.
Retail display cabinets, hospitality case goods, and retail storage systems benefit from soft-close performance where repeated drawer operation occurs during daily business operations. In showroom and boutique environments, controlled closing prevents product displacement within display drawers and reduces impact-related wear on cabinet components over time.
The 4502S series is designed for side-mount application, with the outer rail secured to the cabinet side panel and the inner rail fastened to the drawer side. Required side clearance is 12.7 mm per side, consistent with standard 45 mm drawer slide industry dimensions. Elongated mounting slots allow for positional adjustment during assembly, accommodating minor manufacturing variances in cabinet and drawer construction.
A nylon release lever is integrated into the slide assembly, allowing the inner rail to be separated from the remaining slide members without additional tools. This feature streamlines installation by enabling separate mounting of cabinet and drawer components, followed by on-site assembly. The disconnect mechanism also supports drawer removal for maintenance or interior access in installed furniture.
A hydraulic damper cartridge mounted within the rear rail section engages during the final segment of closing travel. The damper converts the drawer's forward momentum into controlled hydraulic resistance, slowing the drawer to a gentle, impact-free close. The mechanism activates automatically on every closing cycle.
Rated load capacity is 25-35 kg per pair, with the exact rating determined by the selected material thickness. The 1.2×1.2×1.5 mm configuration provides the highest load capacity within this series. All ratings assume proper side-mount installation with evenly distributed drawer weight.
Retrofitting is possible when the existing cabinet uses standard 45 mm side-mount slides with matching 12.7 mm side clearance. Verify existing hole patterns against the dimensional table for compatibility, or plan for re-drilling mounting holes if positions do not align. Length selection should match the existing drawer depth specifications.
Standard production offers electroplated blue zinc and electroplated black finishes. Alternative surface treatments may be available for qualifying volume orders. Contact the sales team with specific finish requirements, target quantities, and project timelines for custom finish evaluation.
Soft-close slides incorporate a hydraulic damper that controls the closing stroke to prevent slamming. Push-open slides use a spring mechanism that ejects the drawer when pressed, eliminating the need for handles. These are separate functional features; the 4502S series is a soft-close product that opens via standard manual pulling and closes with controlled damping.
