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.
Key Specs
Key Specs
Overview Points
Sheet Thickness Range
Motor Performance
Single Pass Operation
Compact Footprint
Mobile Design
Protected Components
Material Alignment
Proven Manufacturing
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.
Our expertise is here to serve you
We take every question and need of yours seriously. Feel free to contact us!
80+ Global Countries & Regions
25+ Years of R&D & Welding Expertise
500+ Products with 100% Traceability
700+ Installations from Simulation to FAT





















