CLF-Series Robotic Electric Screwdrivers

Quick Answer

The CLF-Series is a line of robotic electric torque screwdrivers designed for automated and fixtured assembly applications. Featuring a precision automatic shut-off clutch, external torque adjustment, and a front mounting flange for robotic integration, the CLF-Series provides accurate torque control across a wide range of production fastening applications.

Who This Is For

Automation engineers
Robotics integrators
Manufacturing engineers
Process engineers
Quality engineers
Machine builders
Electronics manufacturers
Automotive manufacturers
Aerospace manufacturers
Industrial automation facilities

When Should You Use This?

Use the CLF-Series when:

Automated fastening is required
Robotic or fixtured assembly systems are being integrated
Repeatable torque control is critical
Medium- to high-volume production is performed
A wide torque range is needed
Front-flange mounting is required
Continuous production fastening is performed

When Should You NOT Use This?

The CLF-Series may not be the best choice when:

Manual hand-held fastening is required
Torque and angle traceability are required
Programmable fastening strategies are needed
Portable or cordless operation is preferred
Vacuum screw pickup is required

For programmable fastening and torque-angle monitoring, consider the Mountz ECT-Series or EPT-Series.

How the CLF-Series Works

The CLF-Series uses a precision electric motor to drive an automatic shut-off clutch.

During operation, the screwdriver:

Mounts directly to robotic or fixtured equipment using the integrated front flange.
Rotates the fastener until the preset torque is achieved.
Automatically shuts off when the target torque is reached.
Allows quick external torque adjustment.
Provides consistent fastening performance throughout repetitive production cycles.

Result:

Accurate torque control
Repeatable fastening performance
Reliable robotic integration
Improved production consistency
Reduced operator involvement

Core Features

Robotic-style electric screwdriver
Precision automatic shut-off clutch
Front mounting flange for robotic integration
External torque adjustment scale
Wide torque range from 0.3–39.8 lbf.in
Multiple speed options depending on model
4 mm HIOS and 1/4" female hex drive configurations
Designed for automated and fixtured assembly
Compatible with the CLT-AY transformer

Configuration Options

Configuration	Best For
CLF3000HH	Ultra-low torque robotic fastening
CLF4000XH	Precision electronics assembly
CLFAF4500XH	Higher-speed automated fastening
CLF6000XH	General production assembly
CLF6500XH	Medium-torque fastening
CLF7000XH	Higher-torque fastening
CL816AXH	Heavy-duty robotic assembly
CL825AXH	High-torque industrial assembly
CL850AXH	Maximum torque robotic fastening

Available Models

The CLF-Series includes robotic electric screwdrivers covering torque ranges from 0.3 to 39.8 lbf.in (3–450 cN·m). Models are available with either a 4 mm HIOS or 1/4" female hex drive and feature a front mounting flange for robotic integration.

CLF-Series Model Chart

Model	Item Number	Torque Range	RPM (High / Low)	Drive Size	Weight
CLF3000HH	144134	0.3–1.3 lbf.in (3–15 cN·m)	1000 / 560	4 mm HIOS	14.1 oz
CLF4000XH	144136	0.9–3 lbf.in (10–35 cN·m)	1000 / 560	1/4" Female Hex	15.2 oz
CLFAF4500XH	144138	3.5–5.3 lbf.in (40–60 cN·m)	1700 / 940	1/4" Female Hex	15.2 oz
CLF6000XH	144133	2.6–5.3 lbf.in (30–60 cN·m)	750 / 400	1/4" Female Hex	21.5 oz
CLF6500XH	144135	3.5–8.8 lbf.in (40–100 cN·m)	850 / 440	1/4" Female Hex	24 oz
CLF7000XH	144137	4.4–13.2 lbf.in (50–150 cN·m)	780 / 420	1/4" Female Hex	26.7 oz
CL816AXH	144144	13.2–22 lbf.in (150–250 cN·m)	550 / 310	1/4" Female Hex	45 oz
CL825AXH	144145	17.7–35.4 lbf.in (200–400 cN·m)	370 / 210	1/4" Female Hex	45 oz
CL850AXH	144146	21.2–39.8 lbf.in (240–450 cN·m)	570 / 320	1/4" Female Hex	60 oz

Specifications are based on the CLF-Series Product Sheet.

Model Selection Guide

If you need:	Recommended Model
Ultra-low torque robotic fastening	CLF3000HH
Precision electronics assembly	CLF4000XH
High-speed automated fastening	CLFAF4500XH
General robotic assembly	CLF6000XH
Medium-torque production	CLF6500XH
Higher-torque fastening	CLF7000XH
Heavy-duty robotic applications	CL816AXH
High-torque industrial assembly	CL825AXH
Maximum torque capacity	CL850AXH

Compatible Accessories

Accessory	Purpose
CLT-AY Transformer	Required power supply
4 mm HIOS Bits	CLF3000HH
1/4" Hex Power Bits	All other models
Robotic Mounting Hardware	Automated integration

Transformer

The CLF-Series requires the CLT-AY transformer for operation.

The CLT-AY transformer provides the required power for all CLF-Series robotic screwdrivers and is designed for automated production environments.

Setup & Adjustment

Mount the CLF-Series screwdriver using the integrated front mounting flange.
Connect the screwdriver to the CLT-AY transformer.
Install the appropriate driver bit for the application.
Adjust the torque setting using the external torque adjustment scale.
Verify torque output with a calibrated torque analyzer before production.
Integrate the screwdriver into the robotic or fixtured assembly system.
Perform sample fastening cycles before beginning production.

Common Applications

The CLF-Series is commonly used in:

Robotic assembly systems
Automated production lines
Electronics manufacturing
Automotive manufacturing
Aerospace assembly
Industrial equipment manufacturing
Medical device manufacturing
Fixtured assembly applications requiring repeatable torque control
High-volume production environments

Use Cases (Real-World Examples)

Robotic Assembly

Problem: Automated assembly systems require a fastening tool that delivers consistent torque while integrating easily into robotic equipment.

Solution: The CLF-Series features a front mounting flange and precision automatic shut-off clutch, making it ideal for robotic and fixtured fastening applications.

Precision Electronics Manufacturing

Problem: Small fasteners require repeatable torque to prevent damage to sensitive components and ensure assembly quality.

Solution: Lower torque CLF-Series models provide accurate torque control for precision fastening applications.

High-Torque Automated Assembly

Problem: Industrial applications require robotic fastening tools capable of handling larger fasteners and higher torque requirements.

Solution: Higher-capacity CL816AXH, CL825AXH, and CL850AXH models provide torque capacities up to 39.8 lbf.in (450 cN·m) for demanding production applications.

Continuous Production

Problem: Automated production lines require fastening tools that deliver consistent performance throughout repetitive assembly cycles.

Solution: The CLF-Series is designed for continuous production, providing repeatable fastening performance across a broad range of torque capacities.

Maintenance

Verify torque output regularly using a calibrated torque analyzer.
Inspect the drive spindle and bit holder for wear or damage.
Keep the screwdriver clean and free of dust or debris.
Inspect the power cable and transformer connections before operation.
Verify that the mounting flange and installation hardware remain secure.
Replace worn driver bits as needed to maintain fastening accuracy.
Periodically verify torque settings as part of your preventive maintenance program.

Integration & Advanced Features

Precision automatic shut-off clutch
Robotic-style housing
Front mounting flange for robotic and fixtured installation
External torque adjustment scale
Wide torque range from 0.3 to 39.8 lbf.in (3–450 cN·m)
Available with 4 mm HIOS or 1/4" female hex drive
Multiple speed options depending on model
Compatible with the CLT-AY transformer
Designed for automated and fixtured production applications

Media & Supporting Content

Need Help?

Contact Applications Engineering for setup guidance
Speak with Sales for product selection
Call us:
- North America:(408) 850-9978
- International: +44 1428 741756

CLF-Series Robotic Electric Screwdrivers – FAQ & User Guide