Laser cutting machine safety protection and pit avoidance guide（safety door·protective cover·Security certification）

This article covers laser safety levels、safety door、protective glass、interlock、CECompliance、Installation and use，Rigorous and reliable content。

one、Safety level and selection to avoid pitfalls

1. Fiber lasers must comply with safety levels：CLASS 1

CLASS 1 Laser safety level：During normal use，No laser leakage from any angle，Completely safe for human body。

All commercial、Export laser cutting machineMust reach CLASS 1，Equipment that does not meet standards is illegal equipment。

2. Safety doors must be fully closed，Semi-enclosure is strictly prohibited、hollow

Fiber laser is invisible，Once leaked, it will burn the retina、skin，without any pain。

Fully enclosed safety door + Flame retardant sheet metal structure，It’s compliant design。

3. The observation window must use special laser protective glass

It is strictly forbidden to use ordinary glass、Acrylic、Ordinary organic board。

Must use1064nm Fiber laser special protective glass，Guaranteed complete shielding from laser radiation。

4. Export equipment must meet CE 2006/42/EC Machinery Safety Directive

must contain：Safety door interlock、emergency stop、Anti-pinch、light curtain、Electrical safety etc.。

None of the items are missing，Unable to clear customs、Unable to sell、Unable to pass inspection。

two、Safety door and electrical interlocking to avoid pits

1. Safety doors must have double-circuit interlocks，Single switch is strictly prohibited

Single switch is prone to failure、short circuit，There are major safety risks。

CE Require：Dual independent signals，If one path fails, the other path will still be protected.。

2. The door must be opened immediately：Cut off laser、discontinuous motion、Cut off high voltage

door open → Laser stops immediately，Servo power off immediately，This is mandatory security logic。

any manufacturerBlocking is not allowed、short circuit、Cancel interlock。

3. hinge、The lock must be secure，Prevent falling off due to shock

The equipment vibrates heavily during long-term operation，Insufficient locks may cause false interlock alarms、Safe failure。

three、Install and use pit avoidance

1. It is strictly prohibited to dismantle the safety door、protective cover operation

Many users remove doors for convenience，This isextremely high risk behavior，Very likely to cause permanent blindness。

2. Protective glass scratched、Cracked must be replaced immediately

After damage, the laser can penetrate directly，lose protective effect。

Replacement is requiredOriginal laser protective glass of the same specifications。

3. Emergency stop buttons must be placed in multiple places、Can be pressed easily

Standard configuration：Operation panel、Both sides of the bed、Beside the exchange platform。

Emergency stop is requiredDirectly cut off the power circuit，Not just signaling。

Four、Common safety hazards and pitfalls to avoid

1. Interlock is shorted、shield：The biggest hidden danger

as a result of：The laser still emits light when the door is opened，Instant blindness。

judge：Does not stop immediately after opening the door，It’s just substandard equipment。

2. No protective glass/Use regular glass instead

Laser penetrates directly，Causes irreversible damage to eyes。

3. Door gap is too big、Sheet metal deformation and light leakage

Invisible laser light leaks from gaps，Eye damage and skin damage from long-term contact。

five、Summary of laser safety protection pit avoidance

1. grade：Fiber laser cutting machinemust CLASS 1 security level。

2. structure：Fully enclosed safety door，No hollow、No loopholes。

3. Observation window：must1064nmSpecial laser protective glass。

4. interlock：Double loop，When the door is opened, the laser light will be turned off immediately.、Servo off。

5. exit：must be satisfied CE Machinery Safety and Laser Safety。

6. use：It is strictly prohibited to dismantle the door、Short circuit interlocking is strictly prohibited、It is strictly prohibited to continue using broken glass。

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