Container Side Seam Welding

With their pioneering contributions to the tin container industry, Mechelonic Engineers has solidified its position as the leading supplier of equipment and systems in this sector. Their semi-automatic and fully automatic body makers have set the benchmark against which all other machines are measured, earning a reputation for their exceptional performance and reliability.

Complementing their line of side seam welding machines, Mechelonic Engineers has also developed a comprehensive range of downstream equipment specifically designed to enhance the manufacturing process of tin containers. These supplementary machines work in harmony with the welding machines to optimize various aspects such as quality, productivity, and cost-efficiency.

Mechelonic Engineers' downstream equipment offers a holistic approach to tin container production, enabling manufacturers to achieve a well-balanced manufacturing process. By incorporating these machines into their operations, manufacturers can enhance the quality of their tin containers, improve productivity, and effectively manage costs.

The full range of machines provided by Mechelonic Engineers caters to the diverse needs of the tin container industry. Whether it's for shaping, forming, or assembling, these machines are meticulously engineered to deliver precise and consistent results, ensuring high-quality tin containers that meet the industry's stringent standards.

Mechelonic Engineers' expertise and comprehensive range of equipment have made them the go-to supplier for the tin container industry. Their semi-automatic and fully automatic body makers have become industry benchmarks, while their downstream equipment further enhances the manufacturing process. With Mechelonic Engineers' solutions, manufacturers can optimize their operations and produce top-quality tin containers efficiently and cost-effectively.

MECHELONIC Engineers Tin Can and Container Machine

Providing you the best range of Ear Lug/ Chapdi Welding Machine (for Tin Can/ Container Making), Stretch Forming Machine (for Tin Can/ Container Making), Side Seam Welding Machine (for Tin Can/ Container Making) and Conical Expander Machine (for Tin Can/ Container Making) with effective & timely delivery.

Ear Lug/ Chapdi Welding Machine (for Tin Can/ Container Making)

Technical Data

Automatic Body Maker

The Mechelonic Engineers' economy version of the Body Maker offers versatile production capabilities for cans used in aerosol, OTSC, pesticide, and general lines. Available in fully automatic (Model 18-56) or manual feeding (Model 18-55), it accommodates prime materials or waste tin plate, enhancing cost-effectiveness. Model 18-55 can later be upgraded to a Body Maker. With a 0.6mm overlap, it ensures quality welds (WIMA standard) and offers optional features like Inside/Outside Stripe lacquering and Nitrogen Shielding. Ideal for low-cost specialty can production, it balances efficiency and affordability, meeting diverse manufacturing needs.

Automatic Body Rolling Machine

Mechelonic Engineers, in their pursuit of innovation, has now developed a simple but a very effective machine for automatic feeding and roll forming of body blanks for can welding. This Body Rolling Machine could be connected electrically with Side Welder and Seam no independent operator is required for this machine. This machine will not only save the man-power but also improve the productivity of the total line.

The Mechelonic Engineers make automatic Feeding & Rolling Machine for forming metal blanks into cylindrical shells prior to locking, soldering or welding the side seam.

Body blanks are stacked on the lifting table. Adjustable guide bars are fitted for the location of the stack and free-running rollers facilitate ease of movement of back-up stacks which can be placed immediately behind the one in use. The table is raised by a hydraulic cylinder, automatically controlled by a limit switch level sensor so that level of top most sheet is always maintained same. When the magazine is empty the stacking table is lowered and the new stack is manually pushed forward.

The rolling station consists of three forming rollers driven by a Timer Belt from a fractional horse power motor. Two rollers are fixed and the third roller is adjustable to produce different rolled diameters of body.

The pneumatic feeder consisting of two pneumatic cylinders and two suction pads connected to vacuum generator, lifts one body at a time and feeds it to the rolling unit which subsequently gets rolled. The signal for lifting the body is given to the feeder either by a "FEEDER ON" push button or a provision also can be made by way of synchronisation of this machine with side seam welder so that every time one body is welded, one blank is automatically fed into rolling machine.

Technical Data

Stretch Forming Machine (for Tin Can/ Container Making)

Technical Data

Container Side Seam Welder

Mechelonic Engineers has now introduced the second generation, fully automatic container Side Seam Welding Machine with medium speed of production. Mechelonic Engineers system of container welding is well established for producing continuous, constant narrow weld at optimum working speed, using copper wire as intermediate electrode.

APPLICATION: The machine is designed for medium speed automatic welding of tin sheets in container manufacturing. This machine has flexibility of design to accommodate different sizes of cans from 100 to 330 mm (401 to 700 size) diameter and 72 to 450 mm length (body height).

FEATURES: The machine is fully automatic combining various stages of manufacturing like destacker feeder, flexer, roll forming, overlapping the edges for welding of side seam, transport to welding station, wire drive, welding station, ejection of welded shells and wire collector.

CONSTRUCTION: Compact main frame of welded construction having streamlined appearance. The main transformer, variable speed drives, electronic control system etc. are enclosed in the frame and are easily accessible for servicing.

MAIN TRANSFORMER : Specially designed class 'F' insulated transformer water cooled and fully tropicalised for withstanding continuous operation.

DESTACKER FEEDER: Pneumatically operated oscillating arm with a set of vaccum suckers, provided on the machine destacks the blanks and delivers them to flexer rollers. This process is monitored by an electronic control system to give command for further operation. A hydraulically operated table is provided for stacking body blanks. This table automatically raises to adjust the level of body blanks for feeding to the flexer. The machine is provided with magnetic sheet floaters and air jet separaters to facilitate single sheet feed to flexer rollers.

FLEXER: The body blanks fed to flexing rollers are flexed and moved to roll former. Flexer is provided with rubber coated rollers to avoid damage to printed surface of tin sheet.

ROLL FORMER: The flexed blanks are automatically moved into the roll former and rolled into desired shapes. Roll former has arrangement to adjust the body rolling diameter within specified range.

CENTERING FLAPS: The rolled blanks are collected by a set of pneumatically operated flaps, which also guides edges of rolled body in catch bar. A separate set of flaps are required for each range of body diameters.

CROWN ASSEMBLY: The crown assembly near welding station controls exact diameter of body before welding. This assembly can be calibrated outside the machine on a setting mandrel.

CALIBRATING RING: For welding with narrow overlap (0.5 mm), calibrating ring assembly provided on the machine will maintain parallel overlap.

One set of crown assembly, crown setting mandrel, centering flaps and calibrating ring will be provided with the machine for a specific size of can as standard. Other sizes will be available on additional cost.

UPPER ARM: The upper arm is manufactured from special grade high tensile brass of suitable cross section to minimise any deflection during normal operation. The upper weld wheel and Z- bar are fixed to this arm. Arm is water cooled.

NOTE: Tooling for 301 and 307 at extra cost.

Tooling for 301 and 307 together with a small arm could be supplied as a special case provided the customer uses Tin plates of Temper T3.

CROWN ASSEMBLY: The crown assembly near welding station controls exact diameter of body before welding. This assembly can be calibrated outside the machine on a setting mandrel.

CALIBRATING RING: For welding with narrow overlap (0.5 mm), calibrating ring assembly provided on the machine will maintain parallel overlap.

One set of crown assembly, crown setting mandrel, centering flaps and calibrating ring will be provided with the machine for a specific size of can as standard. Other sizes will be available on additional cost.

UPPER ARM: The upper arm is manufactured from special grade high tensile brass of suitable cross section to minimise any deflection during normal operation. The upper weld wheel and Z- bar are fixed to this arm. Arm is water cooled.

NOTE: Tooling for 301 and 307 at extra cost.

Tooling for 301 and 307 together with a small arm could be supplied as a special case provided the customer uses Tin plates of Temper T3.

ELECTRONIC CONTROL SYSTEM: Electronic control is a fully solid state modular system with Euro-type plug-in modules arranged in a 19" rack. Each module is specially designed as a functional block of the overall logic system enabling easy trouble shooting.

All in-puts to the control system such as Push Buttons. Limit Switches, Proximity Switches, etc. are galvanically isolated to avoid electrical interference.

LED indications are provided for each input and output to facilitate easy fault finding. Precision adjusting timers are provided for controlling the various functions of the machines such as the window time sheet pick-up time and roll forming time in the can feeding logic sections.

In the welding logic section precision adjusting timers are provided for controlling weld start delay time, start heat delay time and end heat delay time.

The heat control card, which controls the thyristor pair has provision for controlling the heat level at the starting as well as at the ending.

The control chasis is connected to the electrical panel with the help of a single plug. Protective elements like MOV for high voltage surge protection, Thermoswitches for over temperature protection, water cooling for heat decipiation are some of the features provided for protecting the thyristors.

CONTROL FUNCTIONS: On the initiation of the feeder 'ON' Push Button the system initiates the window time and the arm goes down to pick up the body blank. The movement of arm initiates the proximity switch and in turn starts the "pick up timer" and operate the valves "Vacuum" and "Sheet separator". At the end of pick up time, the pick up arm starts its return motion lifting the body blank with it. On its return, the arm once again initiates the proximity switch which in turn cuts off vacuum and sheet separator Solenoid valves while feeding the body blank into the roll forming unit. Proximity switch command the roll forming action and also initiates roll form timer. At the end of roll forming time, the flaps closes to hold the body sheet in correct position. When the flap is closed the push fingers push forward the rolled body to the welding head. On arrival of body at the welding

CONTROL PANEL: A centralised control panel is provided with facilities like operating switches, pilot lamps, ammeter, current fine setting, batch counter and continuous counter of cans. Machine is also provided with additional facilities like single cycle mode and setting up mode.

OPERATING CYCLE: Load Body blanks on table, adjust parameters on the machine, operate the start switch, the machine instantaneously starts and continues to weld the body blanks. The operator has to only ensure that the destacker table has enough stock of body blanks. The automatic function includes picking up of the body blanks, flexing, roll forming, guide to the catch-bar and then to the Z-bar and welding at the welding station. The welded bodies are automatically ejected out.

SAFETY FEATURES: Safety features like No Wire Detector, Wire Cut-Off Detector, No Can Detector, No Guard Detector and Weld Wheel Position Detector, are part of the machine.

SIDE STRIPPING SYSTEM: The Machine can be provided with Nordson internal and external liquid lacquer stripping system, alongwith take off conveyor and suitable curing system at additional cost.

Side Seam Welding Machine (for Tin Can/ Container Making)

Technical Data

Conical Expander Machine (for Tin Can/ Container Making)

The machine is used for forming conical shape bodies out of cylindrical form welded bodies. This machine essentially consists of an expanding mandrel which when expanded hydraulically gives the desired conical shape to body.

The round welded body is fed into the mandrel while mandrel is in closed position and on expanding the body takes final desired shape determined by the die. After stretching the mandrel comes back to close from thereby releasing the conical body.

Specification:

The machine is self contained with a hydraulic power pack, hydraulic and electrical control elements, oil tank etc. with streaching tool. Pressure gauge and flow control valve facilitate setting of correct hydraulic pressure and speed of expansion.

The machine is of compact design and will occupy minimum of space. The operator can sit and operate the machine with both hands free for loading and unloading.

Hydraulic Power Pack And Control:

The hydraulic power pack is built into the frame of machine and is powered by a 3 phase, 50 Hz., A.C. motor. The pump is capable of developing upto 140 kg/cm2 pressure (2000 PSI). The circuit is designed to deliver oil directly into the tank when idle thereby reducing the heat build up. The pressure regulator can provide line pressure of 20 to 140 kg/cm2. Built in air breather filler and intake filter ensure trouble free functioning of the system.

Forming Die:

Forming die of a particular size according to customers' specification can be made which can be mounted on a bracket built on the hydraulic power pack. Machine is provided with a facility to adjust the total stroke of cylinder and there by some variation can be obtained in the conical body diameter.

Technical Data

For Cans Upto 5 Ltrs

For Cans Above 5 Ltrs