How to Choose A Proper Machine Guarding System For Your Production Area?

Safety is a top priority for every enterprise. Keeping operators safe and free from accidents is the only way to guarantee our production capacity. In production, installing a machine guarding system is one of the most effective protective measures to protect the safety of operators.

Metan specializes in providing one-stop machine guarding system solutions. Of which, manufacturing standard compliance machine guarding systems is the most important link in our production. All our opening sizes and panel heights are set strictly in accordance with ISO 13857 & ISO 13854 standards.

You may identify your safety distance first and then choose the opening size of your machine guarding system.

Standard Reference

According to ISO 13857, Sr represents regular openings for persons of 14 years of age and above.

The dimension of the opening, e, corresponds to the side of a square opening, the diameter of a round opening and the narrowest dimension of a slot opening.

Part of Body Opening e (mm) Safety Distance Sr (mm)
Slot Square Round
Fingertip
Fingertip safety distance
e ≤ 4 ≥ 2 ≥ 2 ≥ 2
4 <e ≤ 6 ≥ 10 ≥ 5 ≥ 5
Fingertip up to Knuckle Joint
Safety distance of fingertip up to knuckle joint
6 <e ≤ 8 ≥ 20 ≥ 15 ≥ 5
8 < e ≤ 10 ≥ 80 ≥ 25 ≥ 20
Hand
Safety distance of fingertip to hand
10 < e ≤ 12 ≥ 100 ≥ 80 ≥ 80
12 < e ≤ 20 ≥ 120 ≥ 120 ≥ 120
20 < e ≤ 30 ≥ 850 ≥ 120 ≥ 120
Arm up to Junction with Shoulder
Safety distance of arm up to junction with shoulder
30 < e ≤ 40 ≥ 850 ≥ 200 ≥ 120
40 < e ≤ 120 ≥ 850 ≥ 850 ≥ 850
Notes
* If the length of the slot opening is 65 mm, the thumb will act as a stop and the safety distance can be reduced to 200 mm
Selection Steps
  1. First, we need to confirm the safety distance required. Machine guarding systems we currently produced are mainly applicable to safety distances of 120 mm, 200 mm and 850 mm. Confirm the safety distance according to your on-site conditions.
  2. Confirm the opening size. Currently, our machine guarding systems are provided with slot and square openings. If you have special demands, we may customize the opening according to your requirements.
Selection Reference

According to the safety distance required, you may choose as follows:

Safety Distance (mm) Mesh Opening (mm)
120 Slot opening 20 × 50, 20 × 100
Square opening 30 × 30
200 Square opening 40 × 40
800 Square opening 50 × 50
Kindly Reminder

Metan are committed to providing one-stop machine guarding system solutions and eliminating potential hazards in production and workplaces to ensure the smooth operation of production. You may contact our experts to make out best machine guarding system solutions for your workshop and workplaces.