N2/N3 Pneumatic Guns

Putzmeister’s N-TYPE guns are modern versions of the original cement guns built by Allentown more than 100 years ago. They remain the most versatile machines for the complete range of dry-process shotcrete in refractory and civil applications. Ruggedly built to withstand hard, continuous use, they are renowned for their ability to feed dry or damp, coarse or fine, and dense or lightweight materials at a smooth, accurately metered rate over 500 feet vertically and 1,000 feet horizontally.

Industries/Process Type

Industries     Refractory, Civil
Process type     Dry

Performance

Maximum volume output*     2 - 8 yd³/hr (1.50-6.10m³/hr)
Horizontal pumping distance*     1,000'+ (304m+)
Vertical pumping distance*     500'+ (152m+)
Technical Information
Standard mounting     Steel wheels
Air requirements     375 - 900 cfm
Outlet diameter     1.50" (38mm)

Dimensions

Length     46" (1,168mm)
Width     46" (1,168mm)
Height     54" (1,372mm)
Weight (approximate)     1,220 lbs (553kg)

Options

Power     1 - 7 rpm air motor (when rig mounted)
Outlet     1.25" (32mm), 1.63" (41mm), 2" (50mm)
Hopper options     Bag breaker
Mounting     A-frame, forklift, rig
Special     Feedwheel cover

*Based on rotor and speed, material, conveying distance and air available. They are to be used as a guide only and may be exceeded on specific projects.

Specifications subject to change without prior notice. Weights vary with options selected.  Photos for illustrative purposes only. Refer to operation manuals for safe and proper equipment operation.