Series 300 High Precision Electronic Weld Head

Product catalog summary

Overview
The Series 300 High Precision Weld Head System is designed for resistance welding with force and displacement control, featuring a linear magnetic force actuator and a microprocessor-based electronic control. It provides precise weld force profiles for miniature parts welding, with a resolution of .0001 inch (2.5 µm) for displacement monitoring.

Key Features

High-speed resistance spot welding weld head
Programmable force and weld positions
Excellent force and position repeatability
Displacement monitoring
I/O ports for automation

Typical Applications

Squib welds
Hearing aids
Fine wires
Medical devices

Technical Specifications
Electronic Control – Model 350

Line voltage: 100, 115, 208, or 230 VAC, ±13%, 50/60 Hz, single phase
Input circuit rating: 100 to 115 VAC: 15 A; 208 to 230 VAC: 8 A
Operating temperature range: 0 to 40° C
Weld force: 2 to 20 lb (0.9 to 9.1 kg)
Follow-up weld force: 2 to 50 lb (0.9 to 22.7 kg)
Squeeze period: 1 to 999 ms
Weld period: 0.1 to 99.9 ms
Delay period: 0.1 to 99.9 ms
Follow-up force period: 1.0 to 9.9 ms
Up-stop position: .006 in to .999 in (0.3 mm to 25.4 mm)
Search position: .005 in to .998 in (0.2 mm to 25.3 mm)

Weld Head – Model 301 and Model 302

Stroke (maximum): .999 in (25.4 mm)
Force (maximum): 50 lb (22.7 kg)
Force (weld): 2 to 20 lb (0.9 to 9.1 kg)
Force rating (continuous): 7.1 lb (3.2 kg)
Force linearity: ±5% of setting or ±0.3 lb (136 gm)
Force repeatability: ±0.1 lb (45 gm)
Force response time: 1 ms maximum
Slew rate (maximum): 30 in/sec (76.2 cm/sec)
Operating temperature (maximum): 93° C

Weight & Dimensions

Electronic Control – Model 350: 15.1 in x 10.5 in x 8.5 in (38.4 cm x 26.7 cm x 21.6 cm), 45 lb (20.4 kg)
Weld Head – Model 301 and Model 302: 14 in x 2 in x 4 in (35.6 cm x 5.1 cm x 10.2 cm), 13 lb (5.9 kg)

Additional Information
The system includes features such as object detection, run/dress mode, and various control signal inputs and outputs. It supports RS485/RS232 data transmission for logging weld displacement data. The system is suitable for automated installations and provides a graphical display of the weld force profile and actual displacement.

Catalog excerpts

Series 300 High Precision Electronic Weld Head-1

High Precision Weld Head System with Force and Displacement Control The Series 300 electromagnetic weld head system (U.S. Patent #5386092, #5225647) is comprised of a linear magnetic force actuator and a microprocessor-based electronic control, providing a precisely controlled weld force profile for miniature parts welding. By showing actual displacement (set-down) with .0001 inch (2.5 µm) resolution, the graphical screen allows the user to fine tune the weld time, follow-up force, and weld energy relationships between the Series 300 and the external welding power supply. The built-in displacement monitoring feature can be used to optimize the weld and isolate potential quality problems. KEY FEATURES • High speed resistance spot welding weld head TYPICAL APPLICATIONS • Programmable force and weld positions • Excellent force and position repeatability • Displacement monitoring • I/O ports for automation Squib weld Fine wires Hearing aids Medical devices RESISTANCE WELDING

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Series 300 High Precision Electronic Weld Head-2

RESISTANCE WELDING TECHNICAL SPECIFICATIONS Electronic control – Model 350 Line voltage (input) Input circuit rating Operating temperature range Weld force Follow-up weld force Squeeze period Weld period Delay period Follow-up force period Up-stop position Search position Graphical weld display Weld force profiles Object detection Run/dress mode 100, 115, 208, or 230 VAC, ±13%, 50/60 Hz, single phase 100 to 115 VAC: 15 A; 208 to 230 VAC: 8 A 0 to 40° C 2 to 20 lb, (0.9 to 9.1 kg) (9 to 89 N) 2 to 50 lb, (0.9 to 22.7 kg) (9 to 222 N) 1 to 999 ms 0.1 to 99.9 ms 0.1 to 99.9 ms 1.0 to 9.9 ms .006...

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