Back Extension Machine

Model: G505A

Back extension machine for commercial gyms, studios, and fitness projects that need guided lower-back training, selectorized resistance, and a stable single-station setup for straightforward daily use.

Commercial Supply • OEM Support • Global Delivery

Product Overview

The Back Extension Machine is a selectorized station built for controlled seated lower-back training in commercial fitness environments. Its integrated weight stack, guided movement path, and compact single-station layout make it suitable for strength circuits, core training zones, and general-purpose gym floors.

Specification Table

Total Weight	385 kg
Weight Stack	105 kg (optional 135 kg)
Dimensions	1570 × 1075 × 1180 mm
Main Frame Tube	Constructed from SPHC high-grade steel with a minimum 3.0 mm commercial-duty wall thickness
Tube Specification	75×75 mm, 80×80 mm, 80×40 mm, 100×50 mm, and 120×60 mm square or oval structural tubing, all in ≥3.0 mm heavy-duty commercial specification
Cutting Process	Precision CNC laser cutting for all structural tubes and plates to ensure dimensional accuracy and clean edge finishing
Welding Process	Fixture-controlled welding to guarantee structural alignment, consistent weld penetration, and long-term frame stability
Powder Coating	Dual-layer electrostatic powder coating for uniform coverage, impact resistance, and long-term color durability
Baking Process	Dual high-temperature curing process at 200°C to ensure coating hardness, surface integrity, and industrial-grade finish quality

Design & Training Benefits

This machine supports focused back extension training through a seated format with padded contact points and a defined movement pattern that helps users train with consistent positioning. The selectorized resistance system allows quick load changes, making the station practical for mixed-user facilities and programmed training circuits.

Key Structural Features

Integrated selectorized weight stack
Seated training position with upholstered seat pad
Upper support roller for user stabilization
Visible pivoting movement arm structure
Enclosed frame with single-station footprint

Applications

Commercial gyms
Fitness studios
Hotel fitness rooms
School or institutional gyms
Core and posterior chain training zones

FAQ

Is this back extension machine suitable for commercial gym use? +

Yes, the visible selectorized structure, enclosed frame, and fixed training path indicate suitability for commercial indoor fitness settings. Buyer-critical details such as duty rating and usage classification are To be confirmed.

What type of facility is this machine best suited for? +

This unit fits commercial gyms, studios, hotel fitness rooms, and project-based fitness facilities that want a dedicated lower-back station. Its single-station format also makes it practical for strength circuits and compact training zones.

What maintenance points should buyers review before purchase? +

Buyers should review routine service needs for upholstery, roller coverings, guide components, and moving linkage parts as part of operational planning. Exact spare parts scope and maintenance documentation are To be confirmed.

What should be confirmed before ordering for a gym project or distribution plan? +

Buyers should confirm final dimensions, packed volume, assembly requirements, finish details, and spare parts support before ordering. Shipping and installation details are To be confirmed.

Procurement Notes