ZRH-133NP – 3X Shock Reduced Air Riveting Hammer
Precision Riveting with Reduced Vibration
The ZRH-133NP 3X Shock-Reduced Air Riveting Hammer is a professional-grade pneumatic riveting tool designed for use in aerospace, automotive, and industrial applications. Offering 3X riveting power, it is ideally suited for small to medium rivets, delivering controlled, consistent blows while minimizing operator fatigue with its shock-absorbing technology. This riveting hammer is the ideal balance of power, precision, and comfort, making it the go-to tool for technicians and assemblers handling precision riveting tasks.
Key Features
Shock Reduction Design – Reduces vibration and recoil impact for safer, more comfortable use.
3X Power Output – Designed for driving small to medium rivets with speed and accuracy.
Ergonomic Grip – Provides operator comfort and improved tool handling during extended operation.
Durable Industrial Build – Manufactured with hardened alloys for extended tool life under heavy workloads.
Quick-Change Retainer – Enables rapid rivet set changes to minimize downtime.
Consistent Riveting Quality – Produces uniform rivet heads for reliable, high-strength joints.
Technical Specifications
Model: ZRH-133NP
Type: 3X Shock-Reduced Riveting Hammer
Blows per Minute (BPM): Approx. 2,200
Stroke Length: 2-1/4 in. (57 mm)
Air Inlet: 1/4 in. NPT
Recommended Air Pressure: 90 PSI (6.2 bar)
Rivet Capacity: 3/32 in. – 5/32 in. aluminum or mild steel rivets
Weight: Approx. 4.9 lbs (2.2 kg)
Vibration Control: Built-in anti-shock system for operator protection
Benefits
Reduced Vibration Exposure – Protects operators from fatigue and long-term injury risks.
Optimized for Medium Rivets – Perfectly tuned for aerospace and automotive fasteners.
Durable & Reliable – Heavy-duty construction ensures long service life.
Operator Comfort – Balanced body and ergonomic handle improve control and reduce strain.
Productivity Boost – Quick-change retainer system accelerates workflow.
Applications
Aerospace Assembly: Designed for riveting in aircraft structural components.
Automotive Manufacturing: Ideal for panel riveting and precision fastening.
Shipbuilding & Rail: Suitable for medium-duty rivet driving in confined spaces.
General Industrial Fabrication: Reliable choice for structural riveting tasks.
Repair & Maintenance (MRO): Compact and efficient for rework and service jobs.
Why Choose the ZRH-133NP?
The ZRH-133NP 3X Shock-Reduced Air Riveting Hammer is engineered for professionals who require precision, reliability, and comfort in their riveting operations. With shock-absorbing technology and 3X riveting power, it ensures consistent, high-quality rivet setting while reducing operator fatigue and improving workplace safety. Whether you are working in aerospace assembly, automotive production, or heavy equipment repair, the ZRH-133NP provides the perfect combination of control, comfort, and power.
Features
- Designed with the following patents to ensure the best shock reduction and operator’s comfort.
1) Portable pneumatic tool assembled with module units.
2) Suspension vibration-reducing means for portable pneumatic tools. - Alloy steel-made impact parts are heat-treated for durability.
- The spool valve allows slow, heavy blows needed to drive rivets.
- Ergonomic handle with a rubber-made exhaust muffler for added operator comfort.
- An optional patented universal swivel air inlet joint for the best maneuverability of the tool.
- Air inlet tube
- Bumper
- Valve seat
- Air actuating valve
- Auxiliary damping spring
- Ergonomic handle with rubber sleeve
Features
- Patented Shock-Reduced Mechanism.
- Low vibration design to prevent the operator’s injury after long-term use.
- Ergonomic handle with a rubber-made exhaust muffler for added operator comfort.
- An optional patented Universal Swivel Air Inlet Joint for the best maneuverability of the tool.
Use for the aerospace & general automotive industries, among others.

ZRH-133NPK
[ KIT Contents ]
- CA132901 X1
- CA132902 X1
- CA132903 X1
- CA132904 X1
- CA132905 X1
- 192902 Retainer Spring X1
Specification:
- Chisel Shank Opening: 0.401(10.2) inch(mm)
- Bore Diameter: 9/16(14.3) inch(mm)
- Stroke Length: 2-7/8(73) inch(mm)
- Blows Per Minute: 2164 bpm
- Operating Air Pressure: 90(6.2) PSI(bar)
- Avg. Air Cons.: 7.42(210) cfm(l/min)
- Net Weight: 2.9(1.3) lbs(kgs)
- Vibration: 6 m/s2
- Rivet Size: 5/32 Steel
- Rivet Size: 3/16 inch(mm)

For ZRH-132P, ZRH-132PAP, ZRH-132S, ZRH-133P, ZRH-133PAP, ZRH-133S, ZRH-134P, ZRH-134PAP, ZRH-134S, ZRH-132N, ZRH-133N, ZRH-134N
- Round 10.18mm
- Material SCM440 Alloy
- Hardness: 48~51º
192902
Optional
192903
132914



| Model | Chisel Shank Opening inch(mm) | Bore Diameter inch(mm) | Stroke Length inch(mm) | Blows Per Minute bpm | Operating Air Pressure psi(bar) | Avg. Air Cons. cfm(l/min) | Net Weight lbs(kgs) | Vibration m/s² | Rivet Size | |
| Steel | Alum | |||||||||
| ZRH-132N | 0.401(10.2) | 1/2(12.7) | 2-1/4(57.2) | 2580 | 90(6.2) | 6.71(190) | 2.9(1.3) | 6 | 3/32 | 1/8 |
| ZRH-132NP | 0.401(10.2) | 9/16(14.3) | 2-1/4(57.2) | 2580 | 90(6.2) | 6.71(190) | 2.9(1.3) | 6 | 3/32 | 1/8 |
| ZRH-133N | 0.401(10.2) | 1/2(12.7) | 2-7/8(73) | 2164 | 90(6.2) | 7.42(210) | 2.9(1.3) | 6 | 5/32 | 3/16 |
| ZRH-133NP | 0.401(10.2) | 9/16(14.3) | 2-7/8(73) | 2164 | 90(6.2) | 7.42(210) | 2.9(1.3) | 6 | 5/32 | 3/16 |
| ZRH-134N | 0.401(10.2) | 1/2(12.7) | 3-1/16(77.8) | 1740 | 90(6.2) | 7.42(210) | 3.7(1.7) | 6 | 3/16 | 1/4 |
| ZRH-134NP | 0.401(10.2) | 9/16(14.3) | 3-1/16(77.8) | 1740 | 90(6.2) | 7.42(210) | 3.7(1.7) | 6 | 3/16 | 1/4 |




192903 