Shaft walls play a critical role in multi-story buildings by enclosing vertical openings while maintaining life-safety separation. Shaft wall framing is commonly executed using steel framing fabricated by roll forming machines. Integrated cold-formed steel studs and J-tracks following UL assemblies designed to achieve a tested fire rating are all key elements of shaft walls. Together, these elements allow shaft walls to perform as continuous, code-compliant fire and smoke barriers across multiple floors in a steel-framed building.

The Galvanized CT Stud and J Track Roll Forming Machine developed by Zhongtuo is designed for manufacturing high-quality C-T Studs, J-Tabbed Tracks, and customized shaftwall framing profiles from galvanized steel coils. By combining automatic feeding, precision punching, continuous roll forming, straightening, and hydraulic cutting, this production line delivers stable performance and consistent profile accuracy.

A shaft wall is a vertical, fire-resistant wall assembly used to enclose building shafts such as elevator hoist ways, stairwells, mechanical ducts, and plumbing risers. These shaft walls prevent fire and smoke from traveling between floors while protecting essential building services. Because vertical openings can act like chimneys during a fire, shaft walls are a fundamental requirement for achieving the required fire rating in multi-story structures.

CT Stud and J Track Profiles for Modern Shaftwall Construction

A shaftwall system is a specialized interior non-load-bearing wall assembly designed to provide fire protection, sound insulation, and structural stability inside buildings. Unlike traditional masonry shaftwalls, steel gypsum shaftwall systems offer lighter weight, faster installation, and lower construction costs.

The system mainly consists of:

• C-T Stud
• J-Tabbed Track / J-Runner
• Gypsum Shaftliner Panels
• Fire-rated Gypsum Wallboards

The C-T Stud works as the vertical supporting member. Its unique profile design allows 1-inch gypsum shaftliner panels to be inserted directly into the stud flange, creating a secure friction-fit connection.

The J Track is installed at the floor and ceiling. It supports and aligns the CT Studs while providing a stable framework for the entire shaftwall structure.

Wide Application Areas of Shaftwall Steel Framing Systems

The demand for fire-rated and lightweight construction materials continues to increase worldwide. CT Stud and J Track profiles manufactured by this roll forming machine are widely applied in various building projects.

1. Elevator Shaft Enclosures

Elevator shafts require reliable fire-resistant structures to protect building occupants during emergencies. Shaftwall systems provide excellent fire separation while reducing structural loads.

2. Stairwell Fire Protection Systems

Stairwells serve as emergency evacuation routes. Fire-rated CT Stud and gypsum shaftwall assemblies help maintain safe evacuation channels during fire conditions.

This combination creates a lightweight and high-performance wall system widely used in commercial and industrial buildings.

CT Stud and J Track Profile Characteristics

C-T Stud Profile

The CT Stud is a high-performance vertical framing component engineered for shaftwall applications.

Main features include:

• Designed for 1-inch gypsum shaftliner panels
• Friction-fit installation without complicated fasteners
• High-strength galvanized steel structure
• Excellent dimensional stability
• Available in multiple depths

Common specifications:

Profile Type	Depth
CT Stud	2-1/2 inch
CT Stud	4 inch
CT Stud	6 inch

The special flange structure firmly holds the liner panel while maintaining excellent fire and acoustic performance.

J-Tabbed Track / J-Runner Profile

The J Track functions as the top and bottom framing support in shaftwall assemblies.

Its design advantages include:

• Unequal leg structure for easier installation
• Integrated tabs for accurate stud positioning
• Improved framing stability
• Reduced installation time

Typical specifications:

Parameter	Dimension
Track Width	2-1/2", 4", 6"
Leg Height	2-1/4" or 3"
Material	Galvanized Steel
Application	Floor and Ceiling Support

The tabbed design helps installers quickly locate stud positions and maintain consistent spacing during construction.

Automatic CT Stud and J Track Roll Forming Production Line

Zhongtuo designs this production line according to the requirements of modern steel framing manufacturers. The machine processes galvanized steel coils continuously and produces finished profiles with high precision.

Production Process

Decoiling → Leveling → Pre-Punching → Roll Forming → Straightening → Post Punching → Hydraulic Cutting

Each production stage is optimized for efficiency:

• The decoiler provides stable coil feeding.
• The leveling unit removes material stress and improves flatness.
• The punching system creates accurate holes according to profile requirements.
• The roll forming stations gradually shape the steel without damaging the galvanized surface.
• The straightening system ensures excellent profile linearity.
• The hydraulic cutting system produces accurate finished lengths.

Technical Parameters

Item	Specification
Product	CT Stud / J Track Shaftwall Profiles
Material	Galvanized Steel / Cold Rolled Steel
Material Thickness	1.0–1.2 mm
Forming Speed	4–8 m/min
Length Tolerance	≤0.5 mm
Twist	≤0.5 mm/m
Width Adjustment	Available
Control System	PLC Automatic Control
Production Mode	Continuous Roll Forming

Advantages of Zhongtuo Shaftwall Profile Roll Forming Machine

Flexible Profile Production

The adjustable forming system allows manufacturers to produce different CT Stud and J Track sizes according to project requirements, reducing the need for multiple machines.

High Precision Manufacturing

Precision rollers and advanced forming technology ensure accurate dimensions, smooth surfaces, and reliable installation performance.

Efficient Automated Operation

The PLC control system integrates feeding, punching, forming, and cutting processes, improving production efficiency and reducing labor requirements.

Stable and Durable Equipment Structure

The machine adopts heavy-duty components and optimized mechanical design to ensure long service life under continuous production conditions.

Cost-Effective Manufacturing Solution

By improving production speed and reducing material waste, this roll forming line helps manufacturers achieve lower operating costs and higher production capacity.

Professional Shaftwall Steel Profile Production Equipment Manufacturer

As the construction industry moves toward lighter, safer, and more efficient building solutions, high-quality steel framing components have become increasingly important.

The Galvanized CT Stud and J Track Roll Forming Machine provides manufacturers with a complete solution for producing fire-rated shaftwall framing profiles. With flexible production capability, precise forming technology, and reliable automation, Zhongtuo equipment supports global customers in supplying high-performance steel framing products for modern construction projects.