door frame roll forming machine
Door frames are formed from coil in one continuous pass: uncoiling, levelling, punching for hinges and locks, roll forming, and cut to length. The same line handles steel and aluminum strip, which is why most buyers order one line for both rather than two.
The two decisions that change the machine are the frame section and the strip thickness. A closed anti-theft frame section needs more forming rows than an open profile, and thicker strip raises the motor power. Our standard configuration runs 16 forming rows with a 7.5 kW / 11 kW main motor and handles 0.4-0.9 mm strip.
Line speed reaches 100 m/min on thin strip. On thicker material the limit is the punching station, not the forming stations, so the practical output depends on how many holes your frame design needs.
Tell us the frame section drawing and the strip thickness, and we quote the station count and the punching layout together. manufacturing machine used to produce metal door frames (typically steel or aluminum) through a continuous roll forming process.
What a Door Frame Roll Forming Line Does
A door frame line turns coil into a finished frame in one pass. The coil is uncoiled and levelled, the hinge and lock holes are punched on the flat strip, the strip is roll formed into the frame section, and each frame is cut to length on a servo cut-off. Nothing is welded, and nothing is handled twice between coil and finished frame.
The frame section is what the line is actually built around. A closed anti-theft frame with a full return flange needs more forming rows than an open frame, because every bend needs its own station, and the return flange has to be formed without marking the face the buyer sees.
What Changes the Machine
Two inputs move the specification: the section depth and the strip thickness. A deeper return flange adds forming rows, and thicker strip raises the main motor. The table below gives the standard configuration; anything outside it is quoted against your drawing.
Line speed is quoted up to 40m/min, and that number is real only on thin strip with a simple hole pattern. On the thicker sections used for anti-theft frames the punching station sets the cycle, so the question worth asking a supplier is what output is guaranteed on your hole pattern, not what the line can reach on a blank strip.
Send your inquiry
A roll forming line for anti-theft door frame sections in aluminum coil. 16 servo-leveling stations hold the strip to +/-0.1 mm, 16 forming rows cover 0.4
to 0.9 mm strip, and hinge and lock holes are punched before forming.
to 0.9 mm strip, and hinge and lock holes are punched before forming.
Door frame roll forming machine is mainly used for processing anti-theft door frames.
Line Configuration
| Line size | 6500 x 1200 x 1650 mm |
| Forming rows | 16 rows |
| Material thickness | 0.4 - 0.9 mm |
| Productivity | 0 - 40m/min |
| Transmission | Worm-gear box |
| Shaft diameter | 50mm |
| Main motor power | 7.5 kW / 11 kW |
| Cutting system | Servo cutting |
Steel or Aluminum
Both materials run on the same machine frame; the choice is a tooling choice. Aluminum needs its own roller set and a tighter levelling setting before the strip enters the rolls, and aluminum frames are joined mechanically rather than welded. Steel runs on the standard set.
If your market is mostly anti-theft steel frames, the steel configuration is the cheaper way in. If your market is aluminum frames for storefronts and interiors, the aluminum configuration is the one that holds tolerance without a straightening step afterwards.
Buyers who sell both materials usually order one line with two roller sets. A second complete line only pays for itself when both materials run most days of the week.
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