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The press or shear machine having one of the following switches shall have the safety function to comply with that in Article 4 in any switching state.
1. The switch for the switching of a continuous- stroke, a single- stroke, a safe- single- stroke , an inching-stroke and so forth.
2. The switch for one- hand control instead of two-hand control, or pedal control in stead of two-hand control.
3. The switch for one- console control instead of multi- control consoles.
4. The switch of the safety device for setting the operation of that switching in "On" or "Off".

The stroke changing switch and operation changing switch for the press machine shall comply with the following provisions:
1. For those being a key-switching type, their keys can be taken away in any switching position. It is without restrict for anyone of following states:
(1) The press machine in any switching state has one of safety functions in Article 6 subparagraph 1 through 3.
(2) Switchings are operated by a password.
(3) The switches have other equivalent safety control functions.
2. Swithes can exactly be held in the respective switching position.
3. Switchings shall clearly mark all stroke modes and operation means.

The press machine shall have an one- stroke- one- stop mechanism.

A servo press machine with a servo system to make the slider reduced or stopped shall have a braking construction to stop the slider when the servo system fails.
When the braking in the preceding paragraph occurs abnormal, the slider shall be stopped and cannot be started even the restarted operated.
The servo press using a belt or a chain to drive the slider shall have the construction to prevent hazard from the belt or the chain broken.

The press machine shall have the protective stop mechanism except one of the following states:
1. Using a positive clutch.
2. Having a construction to prevent a body part entering the hazard zone.
3. Having a construction to prevent a body part entering the hazard zone during the slider in moving.
The press machine shall have a construction that the slider cannot move without re-start operating after the protective stop mechanism activated.

The press machine with the protective stop mechanism shall have a device that the protective stop mechanism can be manually operated to make the slider stopped when an emergency occurs.
The press machine shall have a construction that the slider cannot move if it do not return to the original-start position after the emergency stop device activated.

The operating portion for the emergency stop device of the press machine shall meet the following provisions:
1. They have red- protruding- type buttons or others with significant identification to be quickly, efficiently and manually operated.
2. They are provided in each operating zone.
3. For the press machine with straight sides or other similar models, whose maximum distance between both straight sides is over 1800 millimeters, the emergency stop devices shall be set respectively in the front side and the rear side.

The press machine with the protective stop mechanism shall have an inching mechanism.
The above- mentioned inching mechanism shall have at least one of the following devices for controlling the slide movement:
1. slow closing speed (equal or less than 10 mm/s) of the slides;
2. The slide movement shall not exceed 6 mm per inching step, while the press or shear machine cannot be restarted if the operator has not released their two hands from the operating portion.
If the press referred to in the first paragraph is equipped with safety devices to prevent a body part entering the hazard zone, their inching mechanism is not restricted by the requirements of the first paragraph in this Article.

The press machine shall have a safety stopper or a fix- slider device to prevent the slider accidently falling, while featuring an interlocked construction that cannot activate the slider when the stopper or the fix- slider device is used. As the following press machines find it difficult to use that, they can use a safety plug, a safety lock or other devices with an equivalent function.
1. A press brake.
2. Except the press brake, the machine press with each bolter-side-length below 1500 millimeters or the die-height below 700 millimeters.
The proviso for the safety plug or the safety lock in the preceding paragraph shall meet the following provisions:
1. The safety plug is provided in each operating zone of the press machine.
2. The safety lock can block the main motor power of the press machine.
The safety stopper or the fix-slider device in the paragraph 1 shall have the strength to support the total weight of the slider and the upper half die.

The operating portion of the press or shear machine shall have one of the following constructions:
1. to prevent the slider unexpectedly starting up due to inadvertent touching.
2. the slider cannot move without re-starting the operation.
The above-mentioned machinery with mode switching and continuous-stroke shall have a mechanism and construction to prevent the movement of the slider in the case of mistaken operation of the mode switching.

The electrical systems of the press machine shall meet the following provisions:
1. Indicators or other equivalent functional devices are provided to show operating status.
2. Mounting zones for relays, transistors, capacitors, resistors, other electrical parts, control panel, the operation panel or the main body of the press machine have vibration prevention capacity.
3. The electrical circuit for the main motor driving has the function that the main motor cannot be restarted after the end of a power outage unless restart is activated. The above-mentioned requirements may not apply if the machinery is constructed to prevent a body part entering a hazard zone.
4. The electrical circuit for control or operation has the function to prevent unexpected action by the slider in the case of failures by relays, limit switches or other electrical parts, voltage drops or power outage. The above-mentioned requirements may not apply if the machinery is constructed to prevent a body part entering a hazard zone.
5. The operating voltage for the electrical circuit is less than 160 volts.
6. External wires shall meet the national standard CNS 6556 "600V PVC insulated and coated light weight cables" or others having equivalent or more insulation, oil-resistance, strength and durability.
7. Relays, limit switches or other major electrical parts in electrical circuits for controlling or operating shall have sufficient strength and durability.

Springs, bolts, nuts, bushings, pins or others for the press machine shall meet the following provisions:
1. Springs are compression type and guided by rods, pipes or others if the slider have an accident motion risk because of springs broking or dropping out.
2. Preventing loosing shall be applied to bolts, nuts, bushings and others that may lead the slider to unexpectedly move or fitting parts to fall off.
3. Preventing loosing shall be applied to pins that may lead the slider to unexpectedly move or fitting parts to fall off.