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Carter machinery

Lockformers / HVAC roll formers

Pittsburgh lock-forming machines for ductwork, with compact and heavy-duty options. Prices on application.

Compare the lockformers

Compact HVAC lockformer

Compact HVAC lockformer

Roll-form Pittsburgh joints for HVAC ductwork, with adjustable guides and hardened forming rolls.

Mild-steel capacity
26–20 Ga
Forming speed
25 ft/min
Motor power
0.75 kW
Net weight
160 kg

Pittsburgh rolls, double-seam rolls and an automatic guide flanger are standard. Ask about flange, right-angle and drive-cleat tooling for your work.

POA Price on application

Request a quotation
Heavy-duty HVAC lockformer

Heavy-duty HVAC lockformer

Roll-form Pittsburgh joints for HVAC ductwork, with adjustable guides and hardened forming rolls.

Mild-steel capacity
25–16 Ga
Forming speed
24 ft/min
Motor power
2.2 kW
Net weight
299 kg

Pittsburgh rolls, double-seam rolls and an automatic guide flanger are standard. Flange, right-angle, drive-cleat and Z-profile tooling can be discussed with your order.

POA Price on application

Request a quotation

Gauge ranges are the published mild-steel ratings. Confirm the millimetre thickness, seam profile, roll set and electrical supply for your order.

Your machine package

All new machines include a 24-month parts-and-labour warranty. Ask about part exchange, finance, delivery, offloading and positioning when requesting your quotation.

Finance is subject to approval. Delivery, handling and positioning are quoted for your machine and site.

See the forming profiles

Illustrative profiles, not to scale. Pittsburgh rolls, double-seam rolls and the automatic guide flanger are standard. Confirm other required roll sets with your quotation.

Pittsburgh lock profile illustration

Pittsburgh lock

Forms the pocket seam used to join ductwork.

Automatic guide flanger profile illustration

Automatic guide flanger

Forms the mating edge for the Pittsburgh joint. Standard equipment.

Right-angle forming profile illustration

Right-angle forming

Forms a 90° edge flange.

Double seam profile illustration

Double seam

Forms a double-seam edge. Standard rolls.

Drive cleat profile illustration

Drive cleat

Forms a drive-cleat profile for duct joints.