Seam Welding

Seam Welding

Mechelonic Engineers' seam welding machines are tailored to deliver precise and dependable welds for a wide range of applications across industries like automotive, aerospace, and electronics. These seam welding machines boast advanced features, such as programmable parameters, multiple welding schedules, and real-time monitoring, providing a high degree of precision and control during the welding process. The result is consistent and high-quality welds that meet the exacting standards of the industry.

Ease of use and maintenance are integral to the design of Mechelonic Engineers' seam welding machines. The machines are user-friendly and easy to operate, while their modular design makes maintenance and repairs a breeze, keeping downtime to a minimum. The machines' energy efficiency also makes them environmentally friendly, reducing their carbon footprint, and aligning with sustainability goals.

Mechelonic Engineers' seam welding machines are the perfect cost-effective and reliable solution for any industry requiring precise welding. With their advanced features, quality, and commitment to excellence, these machines are sure to provide consistent and high-quality results for years to come.

Circumferential Seam Welder & Longitudinal Seam Welder

These machines are precision-built, with careful design and robust construction, suitable for a long trouble-free service. Each machine is submitted to rigorous proving tests before delivery is made, in order that the machine may be ready for immediate installation and operation at customer's works. The "KNOW-HOW" which enables MECHELONIC ENGINEERS to offer these machines, which are included in the widest range of resistance welding and ancillary equipment, is backed by many years of experience in Welding Technology and conforming to IS:4804 and RWMA Standards.

Machines covered under this bulletin are single phase AC for seam welding application in the manufacture of Drums & Barrels, Fuel Tank, Silencer, Muffler, Shock Absorber, etc.

SPMS AND THREE PHASE D.C. MACHINES: Mechelonic Engineers have in their range a number of SPMs for seam welding applications for jobs, such as fully automatic barrel & shell welding (longitudinal), tub cover welding (circumferential), shock absorber welding, fuel tank welding and other automobile components. Mechelonic Engineers also have seam welding machine with 3 phase DC transformer and matching controls.

SPECIFICATIONS: RATING KVA: 50, 75, 100, 150, 200

CONSTRUCTION: Robust Construction, streamlined appearance with maximum resistance to deflection. Welding Transformer enclosed in the main frame, pneumatic controls mounted on the side of the machine.

WELDING TRANSFORMER: Conforms to IS:4804 Part-I and RWMA Standards, water cooled, class 'F' insulation with thermoswitch protection from overloading.

CURRENT CONTROL: Welding current adjustable from 50 to 100% by means of tap change links.

COOLING SYSTEM: Thyristors, Transformer, Secondary connections and electrode wheels are water cooled.

ELECTRODE FORCE: Upper ram is actuated by heavy duty 2-way pneumatic cylinder, controlled by solenoid valve. Compressed air at 2.0 kg cm. sq. to 5.6 kg. cm. sq. provides the electrode force.

Air filter, lubricator, regulator, pressure guage are provided as standard accessories.

ELECTRODE DRIVE: Machines are provided with different drive system depending on the application. Customer to specify the preferred system. 1) Direct Drive Direct gear drive is given to any one of the wheels. 2) Knurl Drive: One of the wheels or both are driven through a serated hardened wheel depending on the style of welding. Constant dressing of weld wheel to maintain uniform profile, constant welding speed irrespective of weld wheel diameter are some of the advantages of knurl drive system.

NARROW TRACK SEAM WELDING: In order to weld coated sheets for application like fuel tank, machine with narrow track welding (2.5 to 3 mm weld width) facility could also be supplied.

In narrow track seam welding, weld wheels are of thickness 6 mm constantly coined for circular profile which results in narrow contact with very high pressure density. Due to this high pressure density the coated material on the sheet metal is squeezed out during the welding.

MOTOR DRIVE: Machine will be supplied with drive system comprising AC squirrel cage induction motor, DOL Starter, Reversing Switch, Mechanical Speed Variator and Reduction Gear Box as standard. Other types of drives including DC drive on request.

MICROPROCESSOR BASED WELD CONTROL: (Optional at extra cost) Machine can be supplied with Microprocessor based control. (For details refer Mup Spcn.)

MODEL: LONGITUDINAL:
CIRCUMFERENTIAL:
SL-50
SC-50
SL-75
SC-75
SL-100
SC-100
SL-150
SC-150
SL-200
SC-200
Rating @ 50% duty cycle KVA 50 75 100 150 200
Upper Electrode Cylinder Stroke Max mm 50 50 50 50 50
Vertical Adjustability of Ram mm 50 50 50 50 50
Max. Available short circuit +10% at 460 throat depth KAmps 13 15 20 25 30
Max. Electrode Force @ 5.62 kg/cm2 Kgf 440 440 440 625 990
Air consumption @ 100 operation with full cyl. stroke Ltrs. 506 506 506 750 750
Min. Cooling Water required L/Min 40 40 40 45 45
Main supply cable size (Cu/Alu) mm 25/50 50/70 70/95 95/120 120/185
Main Supply Switch Fuse Rating 500 V Amps 100 150 200 400 400
Welder Protection Fuse H.R.C. type Amps 90 140 175 250 350
Approx. Machine Dimensions excluding Throat: for single phase A.C. Machine only Approx. Weight (+ 50 kg per 100 mm Throat depth.) Shipping Weight (Approx.) Depth
Width
Height
Kg
mm
mm
mm

Mash Seam Welder

Mechelonic engineers make Special purpose Seam welding machine specially designed and configured for seam welding of Two wheeler fuel tank inner / Outer seam welding and similar complicated profiles. All the parts of this machine including Weld wheel holders, Ram, transformer, control & current carrying members, differ from conventional Seam Welding machine and are specifically designed for critical profiles of Job, high current concentration localized application of weld force which is very important for good quality seam welding with minimum rejection or rework.

Variable frequency inverter Controller

Knurl / Friction Drive for single holder

Dual Speed System with 2 Foot Switches

External cooling water circulation SS Tank for weld wheel without pump

Model M+NG
Capacity KVA @ 50% duty cycle 200
Variable frequency Inverter controller SVF -800
Throat depth 610 MM
Add ons-

Manually operated centralized grease pumps

AC drive

Tower Lamp

PLC & HMI