Pittsburgh Lock Forming Machine

Reliable Pittsburgh lock forming for fast, airtight rectangular duct assembly.

Single-pass Pittsburgh lock forming machine engineered for HVAC fabrication shops requiring consistent seam quality across 0.6-1.2mm steel sheet. Progressive roller stations eliminate secondary operations while maintaining tight dimensional tolerances essential for leak-free ductwork assembly.

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Key Specs

Key Specs

Overview Points

Sheet Thickness Range

Forms Pittsburgh locks on 0.6-1.2mm mild steel covering standard HVAC ductwork gauges

Motor Performance

2.1 KW motor delivers consistent roll-forming force without stalling across full capacity

Single Pass Operation

Progressive hardened rollers shape complete Pittsburgh profile in one pass, no rework

Compact Footprint

1230×660×1000mm dimensions fit fabrication shops and job-site containers efficiently

Mobile Design

Integrated casters and handles enable single-operator repositioning of 320kg machine

Protected Components

Enclosed cabinet shields motor and drive from metal dust extending service life

Material Alignment

Input guide maintains sheet alignment for uniform lock geometry and leak-free seams

Proven Manufacturing

NTBOBO 25+ years HVAC experience with Midea, Daikin, Bosch client installations

Key Features

The progressive roller stations are machined to tight tolerances and hardened for long-term dimensional stability. Each pass incrementally forms the Pittsburgh lock geometry, producing uniform seam profiles that mate cleanly during duct assembly — reducing air leakage and rework on the production line.

Sheet metal feeds through the full roller train in one continuous pass, converting flat stock into a finished Pittsburgh lock edge without repositioning or secondary tooling. This streamlines workflow and helps fabrication teams meet daily output targets with fewer labor hours per duct section.

The painted steel frame, enclosed cabinet, and ventilated side panels protect internal drive components from the fine particulate generated during sheet metal processing. Bearings, gears, and the 2.1 KW motor are selected for continuous-duty operation in demanding manufacturing environments.

At 1230 × 660 × 1000 mm, the machine occupies minimal floor space. Lockable casters and integrated handles let operators wheel it between cutting stations, TDC flange formers, or directly to assembly areas — useful in both permanent shops and temporary job-site setups.

A clearly positioned control panel and straightforward sheet input guide reduce setup time and training requirements. Operators can begin producing quality Pittsburgh lock seams with minimal instruction, keeping new-line startups on schedule.

Technical Specifications

Applications

HVAC rectangular duct fabrication shops

On-site duct prefabrication for construction projects

Industrial ventilation system manufacturing

Commercial kitchen and cleanroom exhaust ductwork production

Building material and sheet metal processing workshops

Machinery repair shops requiring custom duct sections

Video

FAQ

Pittsburgh Lock Forming Machine is widely used in: HVAC rectangular duct fabrication shops; On-site duct prefabrication for construction projects; Industrial ventilation system manufacturing; Commercial kitchen and cleanroom exhaust ductwork production.

All NTBOBO machines come with a 1-year warranty from the date of Bill of Lading. Our engineering team provides 24-hour technical support throughout the warranty period.

We accept 30% down payment by T/T (Telegraphic Transfer), with the balance due before shipment. Other payment arrangements can be discussed for long-term partners.

Standard delivery is within 10-35 working days after receiving the down payment, depending on the machine model and customization requirements.

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