Cleco 35PTHH403 Shut-Off Model Pneumatic Pulse Tool | H-Series | 4000 RPM | 3/8" Square Drive | 14.8 - 25.8 (ft-lbs) Torque Range

Built for controlled production fastening where repeatable torque matters more than breakaway power, the Cleco 35PTHH403 H-Series shut-off pneumatic pulse tool delivers a 14.8 - 25.8 ft-lbs torque range for medium-duty assembly work. Its hydraulic pulse mechanism (a sealed pulse unit that transfers torque in short hydraulic impulses) helps reduce reaction force compared with conventional impact tools, while the shut-off design stops the tool at the set torque to support consistent fastening from one cycle to the next.

With a 3/8" square drive, 4,000 RPM free speed, and 15.9 SCFM air consumption, the 35PTHH403 is suited for users who need socket-drive compatibility with controlled pneumatic rundown. The H-Series platform includes external torque adjustment, external speed control, a torque signal port, and reversible operation, giving assembly teams a practical tool for bolts, brackets, panels, and mechanical assemblies in the 20 - 35 Nm range.

Type: Pneumatic Pulse Tool | Series: H-Series | Model: 35PTHH403 | Configuration: Pistol Grip Shut-Off | Drive Type: 3/8" Square Drive | Torque Range: 14.8 - 25.8 ft-lbs / 20 - 35 Nm | Free Speed: 4,000 RPM | Weight: 2.31 lbs / 1.05 kg | Air Inlet: 1/4" NPT | Recommended Hose I.D.: 1/2" | Air Consumption: 15.9 SCFM | Rated Air Pressure: 87 PSI / 6 bar

Features:

• Inertia shut-off stops the tool when the preset torque is reached, helping support repeatable fastening in production environments.
• Motor governor helps control tool speed during rundown for consistent assembly cycles.
• External torque adjustment allows torque changes without opening the tool housing.
• External speed control lets users tune fastening speed for different joint conditions.
• Torque signal port is included on pistol grip models for process monitoring or line-control feedback.
• Adjustable pulse unit volume supports serviceability of the hydraulic pulse mechanism.
• Market-leading repeatability supports assembly work where torque consistency is a key quality requirement.
• Reversible operation and oilless blades make the tool practical for everyday fastening and light removal tasks.

Tech Tip: To increase tool performance, extend tool life, and lessen repair costs, use it with a Filter-Regulator-Lubricator FRL)

Applications:

• Automotive and transportation assembly — tightening brackets, covers, support hardware, and medium-size fasteners where repeatable torque is required.
• Industrial manufacturing — running down bolts on fixtures, frames, panels, and subassemblies in station-based production work.
• Appliance and equipment assembly — fastening housings, guards, access panels, and mechanical components with a 3/8" socket-drive setup.
• Maintenance and repair benches — controlled tightening on small machinery, service fixtures, and repair assemblies where an impact wrench may be too aggressive.
• Assembly tooling programs — standardizing H-Series shut-off pulse tools for operators who need low reaction force and repeatable pneumatic fastening.

FAQs:

• Q: What is the advantage of a shut-off pulse tool?
  A: A shut-off pulse tool stops when the preset torque is reached, helping reduce variation between operators and fastening cycles. The pulse mechanism also helps lower reaction force compared with many conventional impact tools.
• Q: What sockets fit the Cleco 35PTHH403?
  A: The 35PTHH403 uses a 3/8" square drive, so it accepts compatible 3/8" drive impact-rated sockets. Always match the socket size and rating to the fastener and torque requirement.
• Q: What air supply is required for this model?
  A: Cleco rates this tool at 15.9 SCFM with performance measured at 87 PSI / 6 bar. Use a properly sized air line, fittings, and compressor capacity so the tool receives stable pressure during repeated fastening cycles.
• Q: How is the 35PTHH403 different from the 35PTHH40Q?
  A: The 35PTHH403 has a 3/8" square drive for sockets, while the 35PTHH40Q has a 1/4" quick change drive for compatible bit-style adapters. Both models share the same 14.8 - 25.8 ft-lbs torque range and 4,000 RPM free speed.
• Q: Is this tool meant for breaking loose stuck bolts?
  A: No. The 35PTHH403 is primarily a controlled assembly fastening tool, not a breakaway impact wrench. Use it for repeatable tightening within its torque range, and select an impact wrench when high removal torque is the main requirement.

Looking for more information about Cleco Pulse Tool? Click here to view the Catalog.

Need help selecting the correct Cleco Pulse Tools for your application? Please call (800) 608-5210 or email info@intlairtool.com