Compression

• Overview
• Custom Presses
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Transfer

• Overview
• Advantage Presses
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• Investment Casting
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Injection / Medical

• Overview
• The Nano-Molder
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• Liquid Silicone Rubber (LSR)

Extruder

• Lithium Extruder
• Thermoset Plasticator
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Wrappers

• Wrapper Retrofits
• Tissue Wrappers

Advantage and Conventional line

LMG Down-Acting round tie rod presses have been an industry work horse for over 70 years. They have been used in many applications including rubber, SMC, BMC, Phenolic, thermoset and thermoplastic composite materials and others. The robust design provides for many years of high quality molding. The LMG control system is user friendly and equipped with velocity and pressure profiling to ensure that you have optimum results. The energy efficient hydraulic systems keep your operating costs at a minimum. All Lawton down-acting presses are equipped with a safety bar to protect the operator in the event of a hydraulic failure.

Examples of Down-Acting Tie Rod Presses

20 Ton Press ENLARGE
This press was built for very exact parallelism control. The four clamp cylinder rods also act as the tie rods. Each cylinder has a servo valve controlled by a Delta servo controller to achieve parallelism within .001” across the surface of the platen.

75 Ton Press ENLARGE
This press is built to preform Teflon material that will later be sliced to make seals. The press automatically loads material into the cavity and pushes the preformed part onto the exit conveyor.

300 Ton Press ENLARGE
Press is built for compression molding Electrical circuit breakers out of thermoset BMC material. It has velocity and pressure profiling capabilities for optimum molded part results. It is equipped with top and bottom hydraulic ejection. The top mounted hydraulic power unit saves floor space.

500 Ton Press ENLARGE
This press was built for molding an automotive part our of SMC material. It has velocity and pressure profiling capabilities to achieve optimum molded part results.

700 Ton double daylight press ENLARGE
This press was built with two daylights so that two molds can be utlilized at the same time. This press was built for compression molding of recycled thermoplastic material.

1000 Ton Press
This press was built for molding large SMC parts. The control system has velocity and pressure profiling of the clamp during the pressing stroke to achieve optimum results in the molded part.

Down Acting Paraguide press

LMG’s robust Paraguide press features 45° gib guided columns provide for tighter parallelism control than can be achieved with a round tie rod press. This design can also reduce deflection that can be caused by slightly off center loads. This type of guiding is a little more costly but has several advantages. Contact area with the column is higher and predictable. When the 45 degree angle is used properly it can help offset most of the thermal growth of the fixed and moving platen. We design our presses so that when the moving platen grows front to back it increases the guiding clearance relative to the cylinder platen which is used by the growth of the left to right dimension to maintain good guiding. This type of guiding is simple to replace and is adjustable so that clearances can be run tight with easy adjustment for wear. All LMG presses are equipped with a safety bar to protect the operator in the event of a hydraulic failure.

Examples of LMG Down-Acting Paraguide Presses:

25 Ton Press
This press was designed and built for molding thermoset composite parts. It was built with extra rigidity and guiding spread for molding parts with off center loads. The press is equipped with a servo valve and can be run as a dual tonnage press at either 7 tons or a 25 tons. The servo valve provides for very fine tonnage control in the lower range of the tonnage setting. The press is equipped with heat platens and mold heat control. The Computer touch-screen can save thousands of mold set-up recipes. A bar code scan is used to identify the mold being used and automatically download the recipe for that mold into the controller.

200 Ton Press
This press is a high speed press that can mold either thermoset or thermoplastic composite materials. The press control has velocity and pressure profiling capability to achieve superior molded part quality.

300 Ton Press (coming soon)
The press is built for processing high temperature thermoplastic material with very high percentages of carbon fibers to produce high strength low weight parts for aerospace applications.

700 Ton Fuel Cell Press ENLARGE
The press was built to meet the demanding requirements of molding fuel cell plates. The press has a very robust design and extra long guiding on the moving platen to meet the deflection and parallelism requirements of fuel cell plates which have to be molded flat within 0.001 inches or better across the surface of the plate. The press uses a servo controller to achieve the high speed closing and instantaneous build-up of clamp pressure upon closing.

1500 Ton Press ENLARGE
The press is built for compression molding of SMC bathroom tub and shower parts. The press controller is capable of velocity and pressure profiling to achieve high quality molded parts.

2000 Ton Press ENLARGE
The press is built with the high speeds necessary for molding thermoplastic composite parts such as LFT and GMT. The press used three main clamp cylinders for high tonnage. Three jack rams are used to achieve the fast close and breakaway tonnage. The press controller is capable of velocity and pressure profiling to achieve high quality molded parts.


Examples of specifications for LMG conventional down-acting presses.

Note: LMG has a vast library of specifications of presses that we have built that are too numerous to list here. If you do not see exactly what you are looking for please contact us. Chances are that we have something very close to what you want or specifications can be changed or modified slightly to meet the needs of your application at a minimum of cost.