Wheel Assembly Spot Welder

high speed and high quality

TECHNICAL SPECIFICATIONS OF INDEXING TYPE, FOUR   HEAD SPINDLE SPOT WELDER - SPM for KTPA AND KZNA models
SN	Description	Specification
	Part description	To weld the   assembled steel wheel model KTPA as well as KZNA
1	Machine model	TN 4 X 63
2	Equipment   detail - 1 no.	Four   spindle spot Welder for Steel Wheel Rims Welding of 24 spots, with Controls   and 63KVA each Rated Capacity and 300KVA each connection capacity to weld 24   spots with indexing fixture with drive, equally devided, rotating thru cam   mechanism.
		One   set of CrZrCu weld electrode, expansion type copper electrode mandril and   pressure pieces in line with the rim profile drawing enclosed herewith, for   clamping of rims.
		PLC   controled.
3	Start Of material
	Bead seat diameter	10"
	Rim band width	70 mm
	Material thickness	2.0 mm for rim + 2.3   mm for spoke plate
	Tensile strength	DD   grade as per IS 513 for rim and D grade as per IS 513 for spoke plate.
	Ref   rim	2.15J X 10".
4	Machine cycle time	20   Sec including loading/unloading.(5 sec)
5	Cooling water input	28 ~ 300C @100LPM
6	Direction of flow	From   left to right when viewed from operator control desk.
7	Rated   capacity of the transformer	63KVA x 4
8	Connection   capacity of the transformer	300KVA
9	Duty cycle	50%.
10	Protection   by delay - action fuse at 415V	400   Amps. MCCB
11	Cooling water flow	100 LPM @ 1.5 TO 2.0   Kg pressure
12	Electrode stroke Min.	75.0mm
13	Electrode Pressure	600 Kgf @ 5.5 Kg/cm2 air pressure
14	Air rerquirement	700Lpm FAD for 24   operation and full strokes.
15	Air surge tank	Shall be provided.
16	Digital water flow   meter	Provided
17	Air pressure switch	Provided
18	Job counter	Provided
19	Y-strainer for inlet   water	Provided
20	Electrode dressing	One   pneumatic dresser shall be provided with the machine. System will be provided   for settable auto stop of the machine after set count for electrode dressings
21	Control PLC	Siemens model S7 200
22	Weld controller	Miyachi   model 210 or 110 for setting all weld parameters
23	Machine housing
24	Machine housings made as a heavy steel weldment   resistance to torsion.    Hoprizontal platen made as table to support the clamping devices.    Welding carriage sliding precisely in ball bearings on ground and hardened       rails.     Guiding system perfectly protected against penetration of weld   flash/scrap.
25	Cylinder operation	Suitable   Pneumatic system shall be provided.
26	Welding transformer	Water   cooled secondaries, impregnated,voltage adjustabe in weld controller. Bridging, Transformer   protected by relay against over heating and Switch On and OFF of weld current   by thyristor contactor..
27	Model   change over	Sutable   adapter plate shall be provided with two dowels and one bolt for tightening   Change over time within 5 minutes.
28	Flash   guard and Fume extractors	Shall   be provided to protect the operator from flash.    Suitable exhaust hood with motor shall be provided.
30	Cleaning device.	Shall   be done manually. Using pneumatic grinder
31	Parameter control   systems
		Weld current
		Holding time
		Welding time
32	PLC software	Selector   switch for manual/auto mode operation.    Fault diagnostic system.
33	Safety features.
	Machine to give audio/alarm in the following cases.
	Air pressure goes beyond set limits, Emergency   stop, Cylinder not in position, water flow improper, water temp. high,presure   switch failure mandril up/down