Servo Motor Actuated - Third Generation

For More than 40 years, TECNA Weldcon has marked an outstanding trail of passion, technology & Innovation. Boasting a deep experience oriented to the future, TECNA Weldcon is now introducing a different & more efficient way to perform the resistance spot welding.

Servo Motor Actuated - Third Generation

Years – long experience cast into the future

TECNA Weldcon recalls it’s past as well as its many worldwide successful welding units which have stood & still stand for the innovating genius conveying in the clever intuitions &dedication of professional.

Its equipment is always enriched with revolutionary ideas & its ingenious solutions, pushed to the edge of technology & performance, are the outcome of years of constant research & innovation.

Third generation Servo Robot Guns were launched in European market in 2012 & are now ready to hit the Indian market.

A completely revamped product design for Servo Motor Guns.

Modern and novel design, minimum parts and ease of maintenance.

Main Features

Design

TECNA Robot guns are designed as per European standards. The unique design can accommodate motor from any robot manufacturer. The compactness, user friendliness and maintainability of Tecna manual guns is earned forward to Robot guns design too. Every part or subassembly of the gun is subjected to life cycle test before accommodating into the product. Modular design enables standard parts for all guns.

Product Range

As per TECNA's philosophy of optimisation ,AC robot guns are available in 32 KVA, 36 KVA, 54 KVA, 60 KVA, 75 KVA. MFDC guns are available in 56 KVA and 90 KVA.

Increase in productivity

The electrode opening can be precisely controlled and travel distance between the spots can be reduced. This results in reduced spotting and traveling time. The electrode opening position can be defined for each spot reducing the opening and closing time of electrodes resulting in reduced spotting time

Precise control on Welding Force

As The welding force is controlled by Current utilized by servo motor, actual force while welding can be controlled precisely. Welding force for each spot can be programmed as per welding requirement of different combination of sheets to be welded.

Inbuilt Force Transducer

To receive real time feedback of Force while welding is also available as option. This is achieved by integrating a Force Transducer built inside the gun mechanism.

Precise control on Heat Generated ( Energy Consumed) while welding

Three important parameters of welding are Current, Time and Resistance. With TECNA constant current secondary feedback Welding Control, Current and time are precisely monitored. The contact resistance is dependant on actual force applied while welding. Servo system controls the force accurately resulting in generating required Heat for welding.

Soft Closing

Electrode Closing speed is reduced just before they touch the panel. This results in reduced Dents and increase in electrode life as initial impact of electrodes is avoided.

Correct welding position

This servo system can identify Tip wear, Deflection in arms and tip position. This helps for correct welding position of the gun.

Environment Friendly

Operational noise of welding gun is reduced by soft closing also they don't produce air exhaust noise.

Conversation with robot

For the convenience of Integrator and robot manufacturer this system is available with various fieldbus options. Interface modules for fieldbus DeviceNet, Profibus, Ethercat are available as standard, ensuring compatibility of communication protocol with wide range of Robots.

After Sales

USP of Tecna in INDIA is after sales and service support. This continues with regional offices with adequate spares.

Technical Data

			Terza GX36	Terza GX54	Terza GX75	Terza GXX75	Terza GXX103	Terza GXM56	Terza GXXM90
Technology			AC	AC	AC	AC	AV	MFDC	MFDC
kVA @ 50% DC		kVA	36	54	75	75	103	56	90
kVA @20% DC		kVA	NA	NA	NA	NA	NA	89	142
Body Weight (W/o Motor, W/o Arms)		Kg	96	105	114	114	127	93	100
No Load Voltage		Volts	6.3	7.1	10	10	13.5	8.4	9.9
Dynamic Performance with Various Actuators
11kN Actuator Throat Depth 300mm #
Electrde Force	Gear Ratio 1:1	kN	4.2	4.2	4.2	4.2	4.2	4.2	4.2
Electrde Opening per Revolution	Gear Ratio 1:1	mm	14.8	14.8	14.8	14.8	14.8	14.8	14.8
Electrde Travel Speed	Gear Ratio 1:1	mm/Sec	742	742	742	742	742	742	742
11kN Actuator Throat Depth 450mm #
Electrde Force	Gear Ratio 1:1.5	kN	NR	4.57	4.57	4.57	4.57	4.57	4.57
Electrde Opening per Revolution	Gear Ratio 1:1.5	mm	13.5	13.5	13.5	13.5	13.5	13.5	13.5
Electrde Travel Speed	Gear Ratio 1:1.5	mm/Sec	676	676	676	676	676	676	676
Electrde Force @ Throat Depth 600mm	Gear Ratio 1:1.5	kN	NR	3.6	3.6	3.6	3.6	3.6	3.6
Electrde Force @ Throat Depth 800mm	Gear Ratio 1:1.5	kN	NR	NR	2.81	2.81	2.81	2.81	2.81
22kN Actuator Throat Depth 300mm #
Electrde Force		kN	13.8	13.8	13.8	13.8	13.8	13.8	13.8
Electrde Opening per Revolution		mm	mm	mm	mm	mm	7.42	7.42	7.42
Electrde Travel Speed		mm/Sec	371	371	371	371	371	371	371
Electrde Force @ Throat Depth 450mm #		kN	10.12	10.12	10.12	10.12	10.12	10.12	10.12
Electrde Opening per Revolution		mm	NR	10.14	10.14	10.14	10.14	10.14	10.14
Electrde Travel Speed		mm/Sec	NR	507	507	507	507	507	507
Electrde Force @ Throat Depth 600mm		kN	NR	7.98	7.98	7.98	7.98	7.98	7.98
Electrde Force @ Throat Depth 800mm		kN	NR	NR	6.22	6.22	6.22	6.22	6.22
Gun Arms
Chromium Copper			Y	Y	Y	Y	Y	Y	Y
INOX Sandwitch Copper			Y	Y	Y	Y	Y	Y	Y
Aluminum			NR	NR	Y	Y	Y	Y	Y

		Terza GX36	Terza GX54	Terza GX75	Terza GXX75	Terza GXX103	Terza GXM56	Terza GXXM90
Technology		AC	AC	AC	AC	AV	MFDC	MFDC
kVA @ 50% DC	kVA	36	54	75	75	103	56	90
kVA @20% DC	kVA	NA	NA	NA	NA	NA	89	142
Body Weight (W/o Motor, W/o Arms)	Kg	96	105	114	114	127	93	100
No Load Voltage	Volts	6.3	7.1	10	10	13.5	8.4	9.9
Dynamic Performance with Various Actuators
11kN Actuator #
Gear Ratio 1:1	kN	5.9	5.9	5.9	5.9	5.9	5.9	5.9
Electrde Opening per Revolution	mm	10	10	10	10	10	10	10
Electrde Travel Speed	mm/Sec	500	500	500	500	500	500	500
8.8kN Actuator #
Electrde Force	kN	8.36	8.36	8.36	8.36	8.36	8.36	8.36
Electrde Opening per Revolution	mm	12.5	12.5	12.5	12.5	12.5	12.5	12.5
Electrde Travel Speed	mm/Sec	625	625	625	625	625	625	625

NA = Not Applicable NR = Not Recommended # Data Nominal to 3000 RPM/10mm Screw Lead

Inverter MF Controller TE700 & AC Controller TE550

Operating frequency: upto 4 KHz
Various Working Modes:

FIX (Partialisation percentage of the delivered power)
IK (Constant Current)
PWK (Constant Power)
ENE (Constant Energy)
VEK (Constant voltage)
DYNAMIC MODE (TE700 only)

As a standard Tecna Weldcon robot guns are supplied with Robot make motor reducing hassles to customer. Option of Tecna Weldcon Motor is also available.
As a standard Tecna Weldcon robot guns are supplied with AC Constant current secondary feedback controller. Option of MFDC control and transformer is also available.
As a standard Tecna Weldcon robot guns are supplied with Copper arms. Option for Aluminum arms is also available.
Tecna Weldcon Robot Guns are also available with Pneumatic and servo pneumatic systems.
Apart from standard designs, special designs also can be supplied under request.

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