Brief Introduction,
Lock former/Pittsburgh machine/Pittsburgh rollformer, mainly used for nipping the plate to facilitate the joint of plate,
is among the most basic equipments for modern duct forming line.
All gears, axles and rollers equipped in the machine are made from high quality steel to ensure their stability and durability.
Different kinds of models are available for dealing with plate sheet in various thickness fm 0.5mm to 1.5mm.
It is easy and convenient for operation or transport due to optimized sizes.
We normally recommend our customers to buy multifunctional lock former with 7 sations!
Preda 7-function Lock former/Pittsburgh machines!
1. SA-12HB is capable of 1.2mm galvanized steel and SA-15B is capable of 1.5mm.
Main difference between SA-12B and SA-15B is the rollers used.
2. To fulfil international customers' requirements on electrics standard.
We are able to change our motors and electrics as per requested free of charge!!
3. 380V/50HZ/3PH is the regular standard for our machine.
Yet we can manage them into 220V/50HZ/1PH or 420V/50HZ/3PH and etc.
Cost will be free of charge as a cooperation to our international customers!!!
4. Lock shapes/pins for below,
1.Arc shape 2.Claw shape 3.Orthogonal shape
4.U shape 5. Union shape 6.Z shape 7. Lock pin
Preda Machine is the real and leading manufacturer specialized in HVAC duct forming machines!
We offer best quality, best prices, best services as far as we could!
Any interest, please contact us via email jason@predamachine.com
or via mobile(WhatApp) +86-18355321923 
Specification,
Lock former
| Model | Max. Plate Thickness (mm) | Working Power (Kw) | Lock Shapes | Weight (Kg) | Dimension (L×W×H, mm) |
| Multifunctional | SA-12HB | 1.2 | 1.5 |
| 290 | 1070×570×920 |
| SA-15HB | 1.5 | 2.2 |
| 290 | 1200×570×920 |
| Union | SA-12 | 1.2 | 1.5 |
| 262 | 1060×590×880 |
| SA-15 | 1.5 | 2.2 |
| 296 | 1200×600×800 |
| Union Arc | SA-12B | 1.2 | 1.5 |
| 272 | 1060×590×950 |
| SA-15B | 1.5 | 2.2 |
| 306 | 1200×600×950 |
| Union Pin | SA-12H | 1.2 | 1.5 |
| 272 | 1060×590×950 |
| SA-15H | 1.5 | 2.2 |
| 306 | 1200×600×950 |
| "U" Shape | SA-12C | 1.2 | 1.5 |
| 150 | 840×440×780 |
| SA-15C | 1.5 | 2.2 |
| 163 | 1040×440×780 |
| Arc | R-10 | 1 | 1.5 |
| 150 | 840×440×780 |
| R-12 | 1.2 | 1.5 |
| 163 | 1920×530×810 |
