Read 3 answers by scientists with 1 recommendation from their colleagues to the question asked by Daniel Martinez Krahmer on Dec 17, JIS B Mechanical power presses — Testing of the accuracy (FOREIGN STANDARD. Find the most up-to-date version of JIS B at Engineering

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It’s hardly recognizable to the operator if the torque limiter functions under the overload condition. When you set up two strain gauges at each side of the frame, the load on one side frame equals to a half of the load becomes setting value and shown as certain kN in RH and LH independently, plus total kN in the display.

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The allowable performance for the former is 1. Standard Equipments with each machine. Standard bolster with T-slots. Hydraulic Overload Protection The machine is equipped with a standard pneumatically operated hydraulic overload safety device. Crank Shaft The Crank shaft would be of forged and normalized medium carbon steel to ensure toughness and shock resistance.

You may recognize from the above discussion that the load gauge display quite differs when smash up a test piece or strike die against die even if the forming energy is the same.

In the screw press, generally, the forming energy is adjusted with slide speed control just jos stamping. Rotary 3 position Cam Limit Switch.


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In case of the operation, hard-on-hard, in which striking die jus die with the same condition as the above item? Dual Sensing Solenoid valve. Its control is where the point to clutch off, not revolution control like inverter motor.

Especially, in those large edge burrs and cold working, it could become out of the allowable load even if the forming energy value is still a half of it. Suitable centralized Motorised Lubrication Pump. We are taking the method that the machine gives warning signal to operator through LED lamp when the machine is in overload emergency stop status from electric signal of the load gauge note We don’t use the torque limiter approach attached to the flywheel discharging overload energy.

Since the screw press has no mechanical lower-dead-point, the machine never stops caused from overload stick like the crank press 6420. The machine is made operational by pushing the reset button. jjis


In screw press, the flywheel jid energy is consumed one hundred percent in each press cycle. Jid Products Profile Brochure Contact. That means that there exists a risk that the machine is used under overload situation without knowing. Surely, it is possible, however, can you imagine and would like to have the screw press that has the frame of kN press with flywheel of kN press and is used as nominal capacity of kN press?

  JIS H5302 PDF

The load should be placed on the center fundamentally. At the time of overload, by exceeding the rating capacity tonnage, the sensitive Hydraulic Overload Protection device senses the overload with a millisecond and immediately stops the machine.

JIS B – Mechanical power presses — Testing of the accuracy (FOREIGN STANDARD)

Ejector bar in slide. It would be accurately machined and ground finished and so designed to ensure optimum factor of safety. We are taking the method 64002 the machine gives warning signal to operator through LED lamp when the machine is in overload emergency stop status from electric signal of the load gauge.

The slide speed adjustment takes the method that controls to have same speed every cycle based on encoder signal detected the slide descending speed. Pneumatic balancer for slide 2 nos.

Basically, eccentric load out of the screw diameter should be avoided. The load gauge simply displays the result of how many kN loaded to the frame. Emergency stopwatch would be provided in the control panel. Die Cushion capacity at 7. Our company does not employ this method because in case of hardened spring adjustment of the torque limiter by mistake, machine may always running with overload and finally machine may brake.