BL-Series Brushless Electric Screwdrivers

Quick Answer

The BL-Series is a line of brushless electric clutch screwdrivers designed for precision assembly applications requiring accurate, repeatable torque control. Featuring a high-performance brushless motor, automatic shut-off clutch, multiple start configurations, and optional ESD, vacuum, and OPC models, the BL-Series delivers reliable fastening performance for demanding production environments.

Who This Is For

Manufacturing engineers
Process engineers
Quality engineers
Assembly operators
Electronics manufacturers
Medical device manufacturers
Aerospace manufacturers
Industrial assembly facilities

When Should You Use This?

Use the BL-Series when:

Precision torque control is required
High-volume production fastening is performed
Long motor life and reduced maintenance are important
Continuous-duty operation is required
ESD-safe assembly is needed
Vacuum pick-up is required for small fasteners
Screw counting or error-proofing is part of the assembly process
Adjustable torque settings are needed

When Should You NOT Use This?

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

High-torque fastening above 30 lbf.in is required
Torque and angle traceability are needed
Fastening data collection is required
Advanced programmable fastening strategies are required
A cordless screwdriver is preferred

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

How the BL-Series Works

The BL-Series uses a high-performance brushless motor to drive a precision automatic shut-off clutch.

During operation, the screwdriver:

Delivers repeatable torque output
Automatically shuts off when the preset torque is reached
Allows external torque adjustment
Minimizes heat buildup during continuous operation
Reduces maintenance through brushless motor technology
Supports high-volume production fastening

Result:

Accurate torque control
Improved fastening consistency
Longer motor life
Reduced maintenance
Increased production efficiency

Core Features

High-performance brushless motor
Precision automatic shut-off clutch
External torque adjustment scale
Designed for continuous-duty production
Minimal heat buildup during operation
Soft-texture ergonomic grip
Lever-start and Two-Way Start models
Vacuum models available
ESD-safe models available
Vacuum/ESD models available
OPC models compatible with the HIOS BLOP-STC Screw Counter Transformer
Requires a compatible transformer (power supply)

Configuration Options

The BL-Series is available in several configurations to support different assembly applications.

Configuration	Best For
Lever Start	Standard production fastening
Two-Way Start (Lever & Push-to-Start)	Flexible production environments
ESD Models	Static-sensitive electronics assembly
Vacuum Models (BLQ)	Picking up and installing small screws
Vacuum + ESD Models	Static-sensitive applications requiring vacuum pickup
OPC Models	Screw counting and error-proofing applications

Available Models

The BL-Series includes multiple brushless electric screwdrivers covering torque ranges from 0.17 to 30 lbf.in (2–340 cN·m). Models are available with standard, ESD, vacuum, vacuum/ESD, and OPC configurations to support a wide range of production fastening applications.

BL-Series Model Chart

Model	Item Number	Driver Type	Torque Range	RPM (High/Low)	Drive Size
BL-2000ESD	144390	ESD Lever Start	0.17–1.7 lbf.in	990 / 650	4 mm HIOS
BL-2000ESD-OPC	144312	ESD Lever Start	0.17–1.7 lbf.in	990 / 650	4 mm HIOS
BL-3000	144393	Two-Way Start	1.7–4.8 lbf.in	980 / 680	4 mm HIOS
BLQ-3000	144394	Vacuum Two-Way Start	1.7–4.8 lbf.in	980 / 680	4 mm HIOS
BL-3000ESD	144395	ESD Two-Way Start	1.7–4.8 lbf.in	980 / 680	4 mm HIOS
BLQ-3000ESD	144396	Vacuum/ESD Two-Way Start	1.7–4.8 lbf.in	980 / 680	4 mm HIOS
BL-3000-OPC	144313	Two-Way Start	1.7–4.8 lbf.in	980 / 680	4 mm HIOS
BL-5000X	144383	Two-Way Start	1.7–10 lbf.in	900 / 590	1/4" Female Hex
BLQ-5000X	144388	Vacuum Two-Way Start	1.7–10 lbf.in	900 / 590	1/4" Female Hex
BL-5000XESD	144385	ESD Two-Way Start	1.7–10 lbf.in	900 / 590	1/4" Female Hex
BLQ-5000XESD	144387	Vacuum/ESD Two-Way Start	1.7–10 lbf.in	900 / 590	1/4" Female Hex
BL-5000X-OPC	144389	Two-Way Start	1.7–10 lbf.in	900 / 590	1/4" Female Hex
BL-7000X	144397	Two-Way Start	6.1–24 lbf.in	960 / 630	1/4" Female Hex
BL-7000XESD	144398	ESD Two-Way Start	6.1–24 lbf.in	960 / 630	1/4" Female Hex
BL-7000X-OPC	144376	Two-Way Start	6.1–24 lbf.in	960 / 630	1/4" Female Hex
BL-7000X-HT	144399	Two-Way Start	6.1–30 lbf.in	700 / 500	1/4" Female Hex
BL-7000X-HTESD	144309	ESD Two-Way Start	6.1–30 lbf.in	700 / 500	1/4" Female Hex

Model Selection Guide

If you need:	Recommended Model
Ultra-low torque precision fastening	BL-2000 Series
Small electronics assembly	BL-3000 Series
Vacuum pickup for miniature screws	BLQ-3000 or BLQ-5000X
General production fastening	BL-5000X Series
Medium-torque assembly	BL-7000X Series
Highest torque capacity	BL-7000X-HT
ESD-safe production	Any ESD model
Screw counting and error-proofing	OPC models
Maximum flexibility	Two-Way Start models

Compatible Accessories

Accessory	Purpose
Compatible Transformer	Required power supply
HIOS BLOP-STC Screw Counter Transformer	Required for OPC models
Tool Balancer	Reduces operator fatigue during repetitive assembly
HIOS Bits	For BL-2000 and BL-3000 models
Power Bits	For BL-5000X and BL-7000X models
Hex-to-HIOS Adapter	Adapts hex bits for HIOS applications

Transformer

The BL-Series requires a compatible transformer (power supply) for operation.

Note: OPC models are designed to operate only with the HIOS BLOP-STC Screw Counter Transformer, enabling screw counting and additional error-proofing capabilities.

Setup & Adjustment

Connect the BL-Series screwdriver to the appropriate transformer.
Install the correct driver bit for the application.
Adjust the external torque setting using the torque adjustment scale.
Verify torque output with a calibrated torque analyzer before production.
If using a vacuum model, connect the vacuum supply and verify proper screw pickup.
If using an OPC model, connect the HIOS BLOP-STC Screw Counter Transformer and verify communication.
Perform sample fastenings and make final torque adjustments before beginning production.
Periodically verify torque output as part of your quality control program.

Common Applications

The BL-Series is commonly used in:

Electronics assembly
Medical device manufacturing
Aerospace assembly
Consumer electronics manufacturing
Telecommunications equipment assembly
Industrial product assembly
High-volume production environments requiring precision fastening
Applications requiring ESD protection, vacuum pickup, or screw counting

Use Cases (Real-World Examples)

Electronics Assembly

Problem: Small electronic assemblies require precise, repeatable torque while protecting sensitive components from electrostatic discharge.

Solution: ESD-safe BL-Series models provide consistent torque control while helping protect sensitive electronics during assembly.

Small Screw Assembly

Problem: Operators struggle to handle miniature fasteners efficiently during high-volume production.

Solution: BLQ vacuum models pick up and hold screws, improving productivity while reducing dropped fasteners and operator handling time.

High-Volume Production

Problem: Continuous production environments require reliable fastening tools with minimal maintenance and consistent performance.

Solution: The BL-Series combines a high-performance brushless motor with an automatic shut-off clutch to deliver repeatable torque while reducing maintenance associated with brushed motors.

Error-Proofing Applications

Problem: Manufacturers need to verify that every required fastener has been installed before completing the assembly.

Solution: OPC models work with the HIOS BLOP-STC Screw Counter Transformer to support screw counting and help reduce assembly errors.

Maintenance

Verify torque output regularly using a calibrated torque analyzer.
Inspect the bit holder and drive components for wear or damage.
Keep the screwdriver clean and free of dust and debris.
Inspect the power cable and transformer before operation.
For vacuum models, periodically inspect and clean the vacuum nozzle and tubing.
Replace worn screwdriver bits as needed to maintain fastening accuracy.
Periodically verify torque settings as part of your preventive maintenance program.