Triangle Keel Roll Forming Machine | Spring Tee Carrier Line for Concealed Ceilings – PUTA Tianjin, ChinaI

PUTAI Triangle Keel Roll Forming Machine – Spring Tee Carrier Production Line for Concealed Ceilings

The PUTAI triangle keel roll forming machine produces the triangular-profile carriers, also called spring tees, that form the hidden support grid in concealed suspended ceiling systems. Galvanized steel coil from 0.3 to 0.9 mm passes through 16 progressive roller stations that shape it into a precise triangular section, then a servo-controlled flying shear cuts each keel to length without stopping the line. Running at up to 30 m/min with ±1 mm cutting accuracy, it gives ceiling component manufacturers a fast, dependable supply of carriers for commercial and public building projects.

What Is a Triangle Keel?

• A light steel carrier with a triangular cross-section, used as the main support rail in concealed ceilings
• Clip-in and lay-in metal ceiling panels spring onto the keel, hiding the grid from view
• Gives a smooth, seamless ceiling surface with no visible framework
• Also known as a spring tee, triangle carrier or triangle ceiling keel

Key Features

• Dedicated line for accurate triangular keel profiles
• Forms galvanized steel from 0.3 to 0.9 mm
• 16 forming stations for precise, consistent triangle geometry
• Servo-controlled flying shear cuts to length without stopping the line
• ±1 mm cutting accuracy
• PLC touchscreen control for easy length and batch setting
• 7.5 kW main motor with gear drive for up to 30 m/min
• Hardened Cr12 rollers for long wear life
• Archway roller stands with graduated adjusting nuts for quick, repeatable setup
• Welded plate frame with polished, hard-plated and heat-treated rollers
• Hydraulic cylinders and pumps in national standard sizes, easy to replace worldwide

Technical Specifications

• Product: Triangle keel (spring tee) carrier
• Material: Galvanized steel
• Material thickness: 0.3 – 0.9 mm
• Forming stations: 16
• Roller material: Cr12, hardened
• Shaft diameter: 50 mm
• Shaft material: 45# steel, forged
• Speed: Up to 30 m/min
• Transmission: Gear drive
• Main motor power: 7.5 kW
• Cutting system: Servo flying shear, ±1 mm accuracy
• Control system: PLC with touchscreen
• Machine weight: Approx. 3,500 kg
• Automation: Automatic

Line Components

• Uncoiler: Holds the steel coil and feeds it into the line
• Entry guide: Positions the strip accurately before forming
• Main roll former: 16 stations on a welded plate frame with motor reducer and gear drive
• Hydraulic station: Standard-size cylinders and pumps for easy maintenance anywhere
• Servo flying shear: Measures each keel by encoder or punched-hole detection and cuts on the move

Applications

• Concealed clip-in metal ceilings
• Commercial buildings and office interiors
• Shopping malls and retail spaces
• Airports, stations and other public buildings

Related PUTAI Ceiling Machines

• Suspension ceiling carrier roll forming machine
• Linear strip ceiling panel roll forming machine
• Ceiling T grid roll forming machine

Commercial Details

• Brand: PUTAI Technology
• Place of origin: Tianjin, China
• Minimum order: 1 set
• Colour: Customised
• Packing: Plastic film wrap for export
• Warranty: One year
• After-sales: Engineer support provided

Frequently Asked Questions

• What is the difference between a triangle keel and a T grid? A T grid is visible below the ceiling and supports lay-in tiles, while a triangle keel stays hidden above clip-in panels for a seamless finish.
• What thickness can the machine form? Galvanized steel from 0.3 to 0.9 mm.
• How fast does it run? Up to 30 m/min.
• Does the line stop to cut? No. The servo flying shear cuts each keel to length while the line keeps running, with ±1 mm accuracy.
• How is the machine controlled? Through a PLC touchscreen where operators set length and batch quantity.
• What should I send for a quotation? Your triangle keel drawing or sample, thickness, any punching requirements, target output, and local voltage and frequency.