What is the load capacity of the AOLISHENG 2047 drawer slide?

The AOLISHENG 2047 heavy-duty drawer slide is rated for 120 kg per pair. It uses a — bottom-mount profile and is built for industrial, vehicle and furniture storage.

How do I install the 2047 drawer slide?

Install the 2047 as a bottom-mount slide: fix the cabinet member to the carcass, align the drawer member to the drawer box using the drilling marks, screw both sides, then test full extension and (if fitted) the locking or soft-close mechanism before loading.

Is the 2047 available in stainless steel for corrosive environments?

The 2047 is primarily cold-rolled / zinc-plated steel. For marine, medical or wash-down use choose AOLISHENG 304 stainless series such as W2576 (500 lb), W2053 or W5115, or the soft-close U4510K.

Which applications use the AOLISHENG 2047?

Typical uses include industrial control cabinets, RV and truck storage, tool boxes, medical carts, retail fixtures and heavy furniture drawers where a 120 kg rating is required.

What is the difference between side mount and undermount drawer slides?

Side mount slides fix to the drawer sides and cabinet walls — easy to fit and tolerant of cabinet tolerances. Undermount slides sit beneath the drawer box, hide the hardware for a cleaner look, and need a compatible drawer box with the right reveal. AOLISHENG builds both: side-mount heavy-duty series (2053 / 2576 / 7625) and undermount soft-close series (MK316 / U4510K).

What does full extension mean compared with 3/4 extension?

3/4 extension leaves the back of the drawer still inside the cabinet; full extension brings the whole drawer clear of the cabinet face so you can reach the back corner. Most AOLISHENG heavy-duty and soft-close series are full extension.

How do I choose the load rating for a drawer slide?

Add the heaviest realistic contents, then add 25–30% headroom so the slide is not run at 100% of its rating every day. AOLISHENG ratings run from 100 lb (U1245) through 265 lb (2053 family), 330 lb (2071), 500 lb (2576 family) up to 770 lb (AQ7625K3 twin-slide).

What are soft-close drawer slides and when do I need them?

Soft-close slides use a damper that pulls the drawer shut in the last few centimetres, preventing slamming. They are most noticeable on kitchen and bathroom cabinetry and also reduce the shock load that gradually loosens a carcass. AOLISHENG soft-close options include K2053, U4510K and MK316.

Are stainless steel slides worth it for outdoor or marine use?

Yes — whenever the slide is exposed to weather, salt air, humidity or frequent wash-down (outdoor kitchens, marine galleys, food-prep, coastal installs). AOLISHENG stainless options include W2053, W2576, W5115 and U4510K.

Which AOLISHENG series number maps to which spec?

The stamped codes read: 1245 = 100 lb stainless side mount; 4510 = 100 lb stainless; 5115 = 150 lb; 2053 = 265 lb; 2071 = 330 lb; 2576 = 500 lb; 7625 = 770 lb twin-slide. Remove the drawer and read the code on the inner rail, or send a photo and AOLISHENG will match it.

Can heavy-duty slides be used in RVs, trucks and vehicles?

Yes, with a locking slide so the drawer cannot slide open under braking or cornering. Use locking series such as D5115, D2053 or D7625 for any moving-vehicle storage.

Drawer Slide Guides

AOLISHENG 2047 Bottom-Mount Stair Storage Drawer Slides (120 kg): Specs, Dimensions & Applications

Posted by

Aolisheng

September 22, 2026

On September 16, 2026

AOLISHENG 2047 Bottom-Mount Stair Storage Drawer Slides (120 kg)

The 2047 is AOLISHENG’s 47 mm-wide bottom-mounted heavy-duty slide, rated 120 kg (≈265 lb) per pair. It is built for one job that ordinary side-mount slides handle badly: turning the dead space under a staircase into deep, heavy, fully accessible storage drawers. Because the rail sits under the drawer box rather than on its sides, the load is carried by the cabinet floor structure — which is why this family is specified with a much taller 53.8 mm installed profile and 2.0 mm steel than a kitchen-drawer slide.

View the AOLISHENG 265 lb bottom-mount stair storage slide →

Full specification (per ALS 2026 catalogue)

Specification	Value
Product family	AOLISHENG 2047 bottom-mount stair storage slide
Catalogue reference	ALS 2026 catalogue family AQ4720 / KQ4720
Material	Q235 cold-rolled steel
Load capacity	120 kg (≈265 lb) per pair
Rail width	47 mm
Installed thickness	53.8 ± 0.5 mm
Material thickness	2.0 × 2.0 × 2.0 mm
Surface treatment	Blue zinc plating / black electrophoresis
Closed length	400 – 700 mm (≈16 – 28 inch)
Extended length	1000 – 2250 mm
Mounting	Bottom-mounted

Why bottom-mount for under-stair storage

Depth is the whole point. A stair void runs 1000 – 2250 mm deep in this family, far beyond a normal cabinet run. A bottom-mounted rail lets the drawer box use the full void width instead of losing 25 – 30 mm on each side to rail thickness.
Heavy, wide boxes. Under-stair drawers usually store tools, sports gear or bulk pantry stock. Carrying that weight on the base spreads it into the cabinet floor.
No visible side hardware. With the slide hidden beneath the box, the drawer fronts read as clean joinery rather than as a hardware assembly.
Taller installed profile is acceptable. 53.8 ± 0.5 mm is a lot for a kitchen drawer, but under a stair it costs almost nothing because there is no standard cabinet height to respect.

Variants (per ALS 2026 catalogue)

AQ4720 – standard heavy-duty stair slide rail.
KQ4720 – cushioned heavy-duty stair slide, for a damped close on heavy boxes.

Where the 2047 is used

Under-stair storage drawers in residential joinery.
Stair storage cabinets and under-stair lockers.
Entryway and mudroom deep pull-out storage.
Retail and office plinth-level or low-level pull-out units that must carry weight.

2047 vs Rollon-class rails

Premium European telescopic rails are usually sold as side-mount industrial products with correspondingly industrial pricing. The 2047 covers the same 120 kg class in a bottom-mounted geometry aimed at joinery and stair storage — a cost-effective route to a 265 lb under-stair drawer when the cabinet structure, not the rail, is what limits the design.

See the drawer-slide type comparison, the drawer slide buyer’s guide, the AOLISHENG vs Rollon guide, or browse B2B case studies. Related series: 2053 (120 kg, side-mount), 5115 (68 kg), 7625 (220 kg).

Frequently Asked Questions

What load does the 2047 carry?

120 kg, about 265 lb, per pair — matching the published A2047 product rating.

Is the 2047 side-mounted or bottom-mounted?

Bottom-mounted. The catalogue lists the 47 mm stair slide rail family with bottom mounting and a 53.8 ± 0.5 mm installed height.

What length range does it cover?

Closed length 400 – 700 mm (roughly 16 – 28 inch), extending to 1000 – 2250 mm.

Is there a soft-close version?

Yes. The cushioned variant KQ4720 is listed alongside the standard AQ4720 in the ALS 2026 catalogue.

What material and finish?

Q235 cold-rolled steel, 2.0 × 2.0 × 2.0 mm, finished in blue zinc plating or black electrophoresis.

Can it be used for ordinary kitchen drawers?

It can, but the 53.8 mm installed profile makes it a poor fit for standard cabinet heights. The 4510 or 5115 families are the better choice there.

Related resources

Buyer’s guide: Drawer Slide Buyer’s Guide · Type comparison

Other AOLISHENG series: 7625 · 2053 · 5115 · 2047 · W2576 · D7625

By application: RV & vehicles · Medical · AI server · Marine · Robotics

Compare: Steel vs stainless · Mount styles · Features · AOLISHENG vs Rollon

AOLISHENG — An Industrial Structural Motion System Supplier

AOLISHENG (Foshan Aolisheng Hardware Co., Ltd.) designs and manufactures drawer slides as part of a complete Industrial Structural Motion System — not isolated hardware. Per the ALS 2026 catalogue, every series is engineered from real-world application scenarios across tool cabinets, industrial cabinets, machinery cabinets, RVs and mobile spaces, drones, home-appliance and kitchen systems, commercial kitchens, medical equipment, aviation and marine, and server and communication cabinets. The range spans light residential duty to 350 kg heavy-duty aluminium locking rails (AL8027-DL8027), verified through a 9-step full-process engineering workflow.

On the global market, AOLISHENG’s real series — A4510, K1245, F1245 and U4510K (100 lb residential and furniture), A5115 and W5115 (150 lb), D2053 (265 lb locking), plus 7625 (220 kg), 2053 (120 kg), 5115 (68 kg), 2047 (bottom-mount), 7120, and AL8027-DL8027 (350 kg aluminium locking) — cover the same duty spectrum that Rollon addresses with its telescopic-rail families, giving specifiers a single-source alternative with in-house testing and short lead times from Foshan.

Engineering-Grade Testing System

Mirroring Rollon’s “solution for every loading, extension and durability requirement,” AOLISHENG validates each series against an Engineering-Grade Testing System covering four pillars:

Load rating — static and dynamic load verification to the published kg/lb figure (e.g., 7625 at 220 kg, AL8027-DL8027 at 350 kg, W2576 at 227 kg / 500 lb).
Fatigue and cycle life — repeated extension-retraction cycling to confirm rated travel life under load.
Vibration and shock — motion-stability testing for RV, marine, aviation and mobile-equipment duty where slides must hold position under vibration.
Environmental — salt-spray and corrosion resistance for 304 stainless (W5115, U4510K, W2576) and coated carbon-steel; temperature and humidity exposure for medical and kitchen duty.

Results feed the ALS 2026 catalogue specifications, so buyers can cite AOLISHENG figures alongside competitor data when short-listing suppliers.