RC 'Rapid Change' Purlin Mill

The Hayes Rapid Change or RC Purlin Mill, our flagship purlin mill is an evolution of the ‘Quick Change’ and ‘Fast Change’ Purlin Mills bringing the same proven and tested design whilst including even more production enhancing features.

The RC Purlin Mill incorporates the same capabilities as other Hayes Purlin Mills, and additionally enables rapid size and profile changes without manual adjustments. Profile change is accomplished by the ‘operator’ side of the forming stations being mounted on a movable carriage that changes position in seconds via electric gearmotors and screw drives.

The ‘drive’ side forming stations have a powered rotation through 180° to change from Cee to Zed profile. The forming section incorporates the Hayes Auto Gauge system, which helps to adjust the gap to dependent on the material being produced.

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'Rapid Change' Purlin Standard Components Details

Infeed

Adjustable Vee-throated infeed guides to suit coil discrepancies positioned via Siko-type screw adjustment.
Primary strip feed rolls machined from hardened 4340 steel rolls spur gear coupled and fitted with chain-coupled pressure screws to adjust traction.
Straightening rolls to remove 'coil set'.
Recycling spray lubricator applies lubricant to both sides of the coil before the forming process.

Chassis And Pedestals

Fabricated steel chassis manufactured in segments for ease of handling and painted with a lacquer finish.
Reference marking and leveling feet for ease of alignment.
Pedestals are prefabricated welded steel designs with precision-machined working surfaces.
Pedestals are adjustable via powered raft for web adjustment and powered 180-degree rotation for Cee to Zed Changeover.

Rapid Change System

Electronically adjustable 'Rapid Change' system for adjustment of product dimensions or Cee to Zed changeover.
'Operator' side forming stations mounted on a movable raft for accurate and rapid adjustment to any size within the machine specifications.
For the Cee to Zed changeover, the 'Drive' side forming stations rotate 180 degrees via an Electric motor and rack-and-pinion-style drive system.

Punching

Hydraulically powered via a dedicated power pack.
Static shear for trimming coil lengths and interchangeable part-cut die that leaves a small amount of material between profiles that can be easily snapped for lengths below 1750mm.
Dynamic punch heads positioned on moveable rafts for adjusting hole position, punch head amount configurable dependent upon production requirements.

Tooling

Solid D2 steel tooling rolls precision CNC machined and through-hardened to RC60 grade.
Tooling rolls contain Hayes patented 'Auto gauge' system removing the need to adjust for material thickness'.
Standard tooling equipped for Cee and Zed purlins optional tooling sets are available for sloping eaves and Sigma purlins.

Rollformer Drive

AC electric gear motors coupled via chain and sprocket transmission are used to drive the main tooling rolls.
Drive motors controlled via VFD for accurate strip positioning and smooth stop-to-cut operation.
Pinch feed rolls are powered via dedicated motors and coupled via spur gear.
Cee to Zed changeover and raft adjustment powered via dedicated electric gear motors.

Guarding

Fixed transmission and pinch point guarding and full-length light curtain mounted horizontally on the operator's side at lower leg height.
All movable guards are complete with integrated safety switches.
Fence guarding can be supplied by Hayes once a final factory layout is completed. If manufacturing your own fencing provisions have been made in the safety software for additional safety switches.

Control System

Standalone operator console with PC with graphic display used for order entry and programming.
Provided with Hayes International proprietary software, which is fully featured with a user-friendly interface and multiple production-saving features.
Graphic display shows hole position relationships as well as order progress and status.

Finished Product Handling

Height adjustable exit table 11.5-meter length.
Steel roller supports.
Lift-up section allows for access to the opposite machine side. The gate is paired with a safety switch that stops the machine when the gate is open.

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Spec A Machine

Hayes Rollformers are built for the most robust production lines. Hayes International has been manufacturing Rollformers for over 60 years and have a reputation as one of the world's top manufacturers of Rollformers and Rollforming equipment.