Dual Leg Press and Calf Extension Machine | BodyKore (GR631)

Two Lower-Body Exercises in One Selectorized Machine

The BodyKore GR631 combines a seated leg press and calf extension into one selectorized strength machine, allowing users to train major lower-body muscle groups without moving between separate pieces of equipment. This dual-function design helps maximize workout efficiency while reducing the amount of floor space required for dedicated lower-body equipment.

The GR631 is well suited for commercial fitness centers, schools, universities, apartment fitness rooms, hotels, corporate wellness facilities, personal training studios, and home gyms seeking commercial-quality selectorized strength equipment.

Selectorized Resistance System

The standard GR631 includes a 220 lb. selectorized weight stack that allows resistance adjustments using a selector pin rather than manually loading weight plates. This makes weight changes faster and more convenient while helping keep the training area organized.

Because selectorized machines use pulleys and leverage systems, the resistance experienced during exercise may differ from the labeled stack weight. Users should select resistance appropriate for their training level and follow the manufacturer's operating instructions.

Optional 340 lb. Weight Stack Upgrade

For facilities serving stronger athletes or advanced users, the GR631 can be equipped with an optional 340 lb. selectorized weight stack. The upgrade is sold separately and provides additional resistance without increasing the machine's footprint.

Leg Press Exercise

The seated leg press targets the quadriceps, glutes, and hamstrings through a controlled pressing movement while allowing users to adjust resistance quickly using the selectorized weight stack. The seated position provides stable support throughout the exercise and encourages consistent movement patterns.

The oversized footplate allows users to adjust foot placement according to individual comfort and training preference while maintaining proper control throughout each repetition.

Integrated Calf Extension

The GR631 also incorporates calf extension training into the same machine, allowing users to perform lower-leg exercises without changing equipment. Combining both movements into one selectorized unit helps maximize floor-space efficiency while providing additional lower-body exercise variety.

The integrated design is especially valuable for facilities where equipment utilization and efficient member flow are priorities.

Commercial Construction

The GR631 is built for repeated commercial use using heavy-duty steel construction, commercial upholstery, and precision selectorized components. The machine is engineered to provide smooth operation while standing up to daily use in busy training environments.

The selectorized system also minimizes setup time between users, making the machine practical for facilities serving a wide range of strength levels throughout the day.

Product Dimensions and Space Planning

The assembled GR631 measures approximately 68 inches long, 40 inches wide and 65 inches high. Although compact compared to many plate-loaded lower-body machines, adequate operating clearance should still be maintained around the equipment for user access, maintenance, and safe operation.

Before ordering, verify ceiling height and measure all delivery paths including exterior doors, interior doors, hallways, elevators, stairways, and final installation access.

Floor Planning

The supplied product weight is approximately 582 pounds. Install the machine on a stable indoor surface suitable for commercial strength equipment.

Facilities with upper-level installations or uncertain structural conditions should verify floor suitability before delivery. Commercial rubber gym flooring can help protect surrounding surfaces but does not determine structural load capacity.

Assembly and Installation

Assembly is required. The frame, weight stack, guide rods, pulleys, cables, seat, and exercise components should be assembled according to the current BodyKore instructions before the machine is placed into service.

After assembly, verify that all hardware is secure, the selector pin engages correctly, and the weight stack travels smoothly before allowing normal operation.

Shipping and Receiving

The GR631 ships by commercial freight. Before shipment, confirm unloading requirements, liftgate needs, delivery access, hallway dimensions, and final equipment placement.

Standard freight delivery should not be assumed to include inside delivery, room placement, unpacking, debris removal, or assembly unless those services are specifically arranged.

Warranty Overview

The warranty includes lifetime frame coverage excluding coatings, ten years on weight stacks, pulleys and pivot bearings, three years on remaining components not otherwise specified, one year on upholstery, cables, springs and grips, and six months on accessories.

Compare Similar Lower-Body Machines

The GR631 is an excellent choice for buyers who want both leg press and calf extension exercises in one selectorized machine. Facilities looking for plate-loaded lower-body equipment can compare the BodyKore CF8131 Glute Press / Leg Sled Combo, the BodyKore FL1801 Iso-Lateral Leg Press, or the BodyKore CF8137 Pendulum Squat Machine. You can also browse our complete selection of Selectorized Strength Equipment for additional commercial lower-body machines.

Ordering Assistance

Need help selecting the right selectorized lower-body equipment or planning commercial installation? Visit IRON COMPANY Customer Care or contact our equipment specialists for assistance with product selection, freight planning, and ordering.