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An eccentric press machine uses a drive linkage or crank mechanism to impart a linear motion to the ram or piston. A mechanical motor drives an eccentric wheel, which rotates upon an axle. The eccentricity of the wheel causes it to move in a circular motion, pushing a rod linked to the slide or ram. This movement creates a reciprocating or linear motion.
The design of an eccentric press enables direct power transmission for various applications like punching, forging, and metal forming. They can also be employed in assembly lines for food extraction, fruit processing, and packing operations. Some eccentric presses come in 800kG, 2,500kG, or higher tonnages, while some vary in terms of the length of sliders and stroke times.
An 800 eccentric press can further be classified into the types described below.
A/C Straight Cut Eccentric Press
The feeder on this machine is above the die, making it easy to set up, operate, and run various jobs with open dies. The open straight-cut sliding dies have features that allow them to be easily rebuilded and remachined to hold workpieces with incisors and grooves. The workpieces easily pass through this open slider gap, allowing them to be sandwiched between the upper and lower parts of the die.
A/C Open Face Eccentric Press
Also known as an open face straight cut press, it has exposed sides. It is a type of eccentric press machine that easily performs machining tasks on workpieces with long, skinny shapes. The open side gap allows the operator to run longer workpieces through the die.
A/C Closed Face Eccentric Press
This involves the side of the open gap with slides enclosing the entire workpiece. It comes with a gap that gives the designer the option to model the die to fit their requirements. The gap can also be modeled and machined to work best with particular workpiece materials.
Maintenance of 800 eccentric presses plays an essential role in their performance and longevity. Here are some maintenance tips for these machines:
The 800 eccentric presses are widely used in various industries for tasks such as precision punching, progressive die stamping, embossing, forming, bending, and shearing. Below are some industry applications of the 800 eccentric presses.
Automotive Industry
The automotive industry uses the 800 eccentric presses for tasks like precision punching, forming, and progressive die stamping. The punches, dies, and forming tools shaped by the 800 eccentric press are used in the eccentric 800 presses to produce complex parts in a sequence of steps. The individual parts are then assembled to make a complete working die. Examples of parts made using the 800 eccentric presses in the automotive industry include:
- Body parts
- Vehicle chassis
- Engine components
- Precision electronics
Manufacturing Industry
In the manufacturing industry, the 800 eccentric presses are used to stamp and form materials. They produce parts like electrical components, connectors, and switches. Material forming and stamping are often followed by assembly processes like welding, threading, or riveting. Examples of parts produced through the assembly after stamping with 800 eccentric presses in the manufacturing industry include:
- Electrical connectors
- Multi-layer switches
- Electronic circuits
Metal Fabrication Industry
The metal fabrication industry uses the 800 eccentric press to cut, form, and punch metal. They produce custom parts and metal assemblies. In many cases, precision stamping is done in sequence with material forming and bending. The punched parts are then used in construction and assembly industries. Examples include:
- Sheet metal components
- Custom metal parts
- Structural assemblies
- Metal frames
As seen above, the 800 eccentric presses are used in automotive, manufacturing, metal fabrication, and electronics industries. They are used for assembling, cutting, forming, bending, and achieving precise results. Some applications include making body parts of automobiles, assembling electrical devices, fabricating sheet metal components, and constructing structural assemblies.
Investors can look at the following factors that can help make a better choice when buying an 800 eccentric press:
Production Requirement:
Buyers should first figure out their supply needs, including the kind and amount of items that need to be pressed. If one makes big batches of products, like more than 2,000 per day, it's better to get a machine with a fixed speed. But for modest production, a changeable speed press will do just fine.
Die Sizing:
It's crucial to know the size of the die that will be used in the eccentric press machine. Ensure that there is sufficient area for the die to fit well and that it works just fine with the machine.
Safety Features:
The safety features of the machine are also important. Look for qualities like emergency stops, guarding, and safety interlocks to assist in preventing unintentional accidents or injuries during use.
Tooling Costs:
Determine the expense of the tooling, such as the dies and punches, required for the eccentric press operation. Eccentric presses may have different prices based on their design and compatibility with tooling.
Floor Space:
Take into account the required floor area for the 800 eccentric press machine. Make sure there is enough pressing area in the manufacturing space to effectively accommodate it and locate other equipment if necessary.
Possible Energy Needs:
Take into account the possible energy requirements of the eccentric press. Make sure the electric system can handle the energy requirements of the machines and any other industrial equipment.
Maintenance Ease:
Maintenance is important for keeping the machine working well and for a long time. The following things should be checked: the equipment's accessibility for repairs, the availability of spare parts, and the support network for technical assistance. Selecting a machine with good support can keep production going nonstop.
Q1: Which industries use 800-ton eccentric presses?
A1: An 800-ton eccentric press is for heavy-duty metal forming. The machine will find applications in the automotive industry for producing parts such as chassis, panels, and body parts. Other potential uses are in the aerospace industry, hardware manufacturing, electronics manufacturing, the metalworking industry, and the appliance industry.
Q2: How does the capacity of an eccentric press tonnage work?
A2: The tonnage or capacity of an eccentric press represents the maximum force the press can exert on a workpiece. The tonnage is an indicator of the pressing force. Higher tonnage means the press will offer higher pressing forces. It will be suitable for handling thicker materials and achieving deeper draws during stamping.
Q3: Does the 800-ton eccentric press have a noise problem?
A3: Like all presses, the 800-ton eccentric press will make some noise during operation.
The noise will be loud, and the operator may hear a thumping sound each time the press strikes. The' thumping' noise can get louder if the material is thicker or harder. An operations manual for the 800-ton eccentric press will suggest wearing ear protection while working on the machine.
Q4: What are some advantages of using an 800-ton eccentric presses for metal stamping?
A4: Eccentric presses, irrespective of the size, offer various advantages. The first is the efficient speed of operations. The presses can carry out metal stamping at fast speeds, and the repetitive actions show the suitability of the press for production-line projects.
The second benefit is the cost of operations. The eccentric presses will have a low cost of operations and maintenance.
The last benefit is ease of use. An eccentric press has a simple layout, and operators will find it easier to operate and control the machine.
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