XINRUI Adjustable Leg Extension & Leg Curl Machine — Commercial Steel Combo Fitness Equipment
Commercial gym owners know the struggle. Cheap leg machines wobble under heavy loads, seats slip mid-set, and customers complain about poor adjustment range. You need a leg extension leg curl combo that handles high-traffic gym use without breaking down — at a price point that doesn’t kill your margin.
Product Overview
The XINRUI Leg Extension & Leg Curl Machine is a dual-function steel combo unit built for commercial gyms, hotels, and rehabilitation centers. One frame, two exercises — quad isolation and hamstring development — with independent adjustment for every user. Heavy-gauge steel construction, pulley-guided motion, and a compact footprint make it a workhorse for any facility floor.
Core Specifications
| Parameter | Detail |
|---|---|
| Product Name | Leg Extension & Leg Curl Combo Machine |
| Frame Material | Commercial-grade Q235 steel, 3mm–4mm wall thickness |
| Weight Stack | 80kg–100kg (optional) |
| Adjustment Range | Seat height, backrest angle, leg roller — all independently adjustable |
| Motion System | Linear bearing guide + nylon pulley, smooth and quiet |
| Upholstery | High-density foam + double-stitched PU leather, abrasion-rated 100,000+ cycles |
| Footprint | 1480 × 1100 × 1520mm (L×W×H) |
| Max User Weight | 180kg |
| Net Weight | 210kg |
| Color Options | Black / custom RAL |
Why Gym Operators Choose This Machine
1. Built for 500+ reps per day. The linear bearing guide and reinforced steel pivot points eliminate the play and drift you get from budget units. In a commercial gym running 8+ hours daily, that durability difference shows up in month six — not month two.
2. One machine, two exercises, zero compromise. The leg extension and leg curl stations share a single weight stack but operate on independent arms. Users transition between exercises in seconds. No second machine taking up floor space.
3. Adjustment that actually works. Seat slides on chrome-plated steel rails, not cheap aluminum. Backrest locks at 12 positions. The leg roller adjusts in 25mm increments. A 155cm user and a 190cm user both get full range of motion — no padding needed under feet.
4. Low maintenance, low downtime. Nylon pulleys and sealed bushings mean no greasing schedule. Upholstery uses commercial-grade PU that resists cracking and sweating. Your facility manager won’t be calling you every week about repairs.
Application & Usage Scenarios
- Commercial fitness centers & franchises — high-traffic strength zones
- Hotel gyms & corporate wellness rooms — compact footprint, premium look
- Physical therapy & sports rehab clinics — adjustable range suits different patient heights
- University & school training facilities — durable enough for student volume
- Home gym / personal studio (heavy-duty segment) — users who train 5–6x per week
Manufacturer Direct — XINRUI Fitness
We are a factory, not a reseller. XINRUI has produced commercial gym equipment for 12+ years with export to 60+ countries.
- OEM/ODM available — logo, color, weight stack, frame size — all customizable
- MOQ from 1 unit for trial orders; bulk pricing for gym chains
- 12-month structural warranty, lifetime frame guarantee
- Free CAD layout support — we help you plan your gym floor before you buy
Ready to cut out the middleman and get factory-direct pricing on commercial leg curl machines? Send us your spec sheet or just a message — we reply within 12 hours.
[Get Quote Now] | [Download Product PDF]

