Steel Door Frame Roll Forming Machine

A door frame roll forming machine produces steel door frames in custom sizes. It punches notches, hinge holes, and lock cutouts in one continuous line. The finished profile folds into a complete door frame.

This door frame roll former handles galvanized steel from 0.8 mm to 2.0 mm thick. With 22 forming stations and servo-controlled punching, it delivers consistent output at 15 to 20 meters per minute.

What a Door Frame Roll Forming Machine Does

A door frame roll forming machine takes flat steel coil and turns it into finished door frame profiles. The line uncoils, levels, punches, forms, and cuts — all in one pass.

This isn’t just a bending machine. The punch unit cuts the miter notches that let you fold the frame at 90-degree corners. It also punches mounting holes, hinge slots, and lock prep. Everything the installer needs is already in the profile when it comes off the line.

Compared to traditional press-brake fabrication, a door frame roll former cuts labor by 60% or more. One operator runs the whole line from a touch screen.

Steel Door Frame Types

Two main door frame profiles dominate the market:

  • Single Rebate Door Frame. The door mounts on one side only. Common in residential and light commercial work. Thinner gauge steel, simpler tooling.
  • Double Rebate Door Frame. Doors can mount on either side. Standard for commercial, institutional, and fire-rated openings. Heavier gauge, wider profile — and the door frame machine needs adjustable tooling to handle both rebate depths.

Steel door frames beat timber on cost, speed, and durability. They install during framing or as retrofits. Galvanized coating means no rust, no warping, no callbacks. That’s why specifiers across Australia, the Middle East, and Africa keep choosing steel over wood — see the HMMA hollow metal standards for performance benchmarks.

door frame types
Common Door Frame Types
Door frame types with return lips
Door frame types with return lips

Door Frame Corner Joints: 6 Methods

How the frame corners connect matters. Different markets need different joints. The self-joint (mitered fold) is the most advanced — no welding, no fasteners.

  1. Butted knocked-down joint — basic, weld on site
  2. Welded joint — shop-welded, ships as a rigid frame
  3. Mitered joint — 45-degree cut, welded or screwed
  4. Spot-welded joint — tack welds, assembles on site
  5. Mitered welded — full miter with continuous weld
  6. Self-joint (mitered fold) — punch notches during roll forming, fold and lock on site. No welder needed. This is the standard for high-volume commercial door frame production.

The self-joint design requires precise notch geometry. A door frame roll forming machine with servo punch control hits tolerances within ±0.3 mm, which manual fabrication can’t match.

steel door frame conrers

Machine Components and Specifications

3-Ton Electric Uncoiler

Spec Value
Structure Steel plate & beam welded frame
Type Double-head decoiler
Mandrel expansion Manual adjust, 450-540 mm
Motor 3 kW
Capacity 2,000 kg per side
Coil ID 508 mm; Max coil OD

Levelling Machine

Spec Value
Type 2-roll pinch feed + 9-roll leveling
Roller diameter 80 mm, 40Cr with high-frequency quench
Motor 3 kW gear motor
Transmission Gear drive with limit switch sync

Pneumatic gap adjustment between leveling rollers. The limit switch keeps the leveler in sync with the uncoiler speed.

Punch Notches and Holes

This is what separates a basic roll former from a production-ready door frame roll forming machine. The punch unit handles three operations:

  • Miter notches for self-joint folding
  • Hinge cutouts and mounting holes
  • Lock prep cutouts
Spec Value
Structure 4-guide pillar type
Servo motor 1.9 kW, Yaskawa
Hydraulic power 11 kW, 20 MPa
Punch mould 1 set, SDK11 tool steel, HRC 58-62
Valve Beijing HUADE electromagnetic

Roll Forming Section

Spec Value
Machine base H-beam steel welded frame
Stations 22 forming steps
Material thickness 0.8-2.0 mm
Shaft 40Cr, HB 220-260, diameter 75 mm
Rollers 45# steel, chrome plated ≥ 0.05 mm
Main motor 11 kW
Speed 15-20 m/min
Drive Chain and gear
Speed control Frequency inverter

PLC Control System

The door frame roll former runs on a Panasonic PLC with an MCGS touch screen. The operator enters length and quantity — the screen shows live machine status.

Spec Value
PLC Panasonic
Touch screen MCGS
Encoder Omron
Inverter Yaskawa
Control box 700 × 300 × 1,000 mm
Hydraulic pressure ≥ 12 MPa
Voltage/Frequency Per client standard
Wiring Aviation plug, quick connect

Why This Door Frame Machine Over Manual Fabrication

A standalone press brake needs 5-6 separate operations per frame: shear, notch, punch hinges, punch lock, bend, weld. A door frame roll forming machine does all this in one line.

Factor Door Frame Roll Forming Machine Manual Press Brake
Operations 1 continuous line 5-6 separate stations
Output speed 15-20 m/min (6-8 frames/min) 1-2 frames/min
Labor 1 operator 3-4 workers
Tolerance ±0.3 mm (servo punch) ±1.5 mm (manual setup)
Material yield 98%+ (coil-fed, near-zero drop-off) 88-92% (sheet offcuts)
Self-joint ready In-line notching, fold on site Requires separate notching step
Changeover 30 min (die swap + stand adjust) 60-90 min (multiple tool changes)
Annual breakeven ~15,000 frames/year N/A (labor scales linearly)
Per-frame cost at scale $0.80-1.20 $3.50-5.00

Above 15,000-20,000 frames per year, the door frame roll former pays for itself. Per-unit cost drops 40-55% at scale compared to manual fabrication, according to Steel Door Institute benchmarks. 

Related Roll Forming Machines

Believe Industry builds a full range of steel door production equipment:

Beyond door components, our roll forming machines cover C purlin, cable tray, stud and track, and pallet racking production lines.

FAQ

What thickness can this door frame roll forming machine handle?

0.8 mm to 2.0 mm galvanized steel. The 22-station forming section and 75 mm shafts handle the full gauge range without deflection. For material above 2.0 mm, contact us for a custom configuration.

Can the machine switch between single and double rebate frames?

Yes. The roller tooling adjusts for both profiles. Changeover takes about 30 minutes — swap the punch die set and adjust the forming stands. Many customers run both profiles on the same door frame roll former.

What's the difference between hydraulic punch and servo punch?

Hydraulic punch uses a central power unit (11 kW, 20 MPa in our spec). Servo punch drives each axis independently with a Yaskawa motor. Servo is faster on position changes and uses less energy. Our door frame roll forming machine uses servo for the notching and hydraulic for the heavier hole punching — best of both.

How fast does the line run?

15 to 20 meters per minute of finished profile. Actual output depends on frame size. A standard 2.1-meter door frame takes roughly 8-10 seconds per piece.

What power supply does it need?

Configured to client standard — 380V/50Hz, 440V/60Hz, or other. The PLC and inverter handle voltage conversion internally.

Is installation and training included?

Yes. We send an engineer for on-site setup and operator training. The door frame machine ships with English manuals, wiring diagrams, and a spare parts list. Remote support is available after commissioning.

How does this compare to buying from a local fabricator?

Local sheet metal shops use press brakes and turret punches. Per-frame labor is 3-5x higher. A door frame roll forming machine pays for itself at roughly 15,000-20,000 frames per year. Above that volume, the margin difference is decisive. Steel Door Institute data shows automated roll forming cutting per-unit costs by 40-55% at scale.

Request a Quote

Tell us your frame profile, typical order volumes, and target market. We’ll configure a door frame roll forming machine to match — including punch tooling for your specific hinge and lock patterns.

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