Occupational Safety and Health Administration (OSHA) standard 1910.217 for mechanical power presses requires use of safety blocks.
"The employer shall provide and enforce the use of safety blocks for use whenever dies are being adjusted or repaired in the press."
Please refer to 1910.217(d)(9)(iv) as referenced in OSHA document:
Regulations: Machinery and Machine Guarding / Standard Number: 1910.217.
Information is also available online from the
American National Standards Institute B11.1-2009 document
Refer to section 9.2.6 "die adjustment, cleaning, or repair."
Safety blocks are designed to prevent accidental die closure during press setup and maintenance. Safety blocks are constructed from lightweight extruded aluminum or magnesium and are available in fixed lengths with wedges for minor adjustment or adjustable versions. Consideration should be given to the weight of safety blocks as they can sometimes be cumbersome to lift where press bolster heights are well off the floor.
Static load and open height requirements determine the optimal size and style of safety block. See the download sheet for more details or contact our Application Engineers for more information.
Series 42 Protech Safety Blocks
Series 42 Protech Safety Blocks
Series 42 Protech Safety Blocks provide safety during set-up and maintenance for power presses. This is done by mechanically and electrically preventing inadvertent die closure. The new model Safety Blocks, Model 42o are for smaller presses, with a maximum static load of 35 tons (having a wide span of adjustable heights). Made of high strength lightweight extruded aluminum. Selection of the proper style and size is determined by the press static load and the required open height. Safety Blocks using wedges are also available, as well as the standard model 42 for larger presses.
| Part Number | Association | Size/Style | Description |
| 42-XXS | 10-15" – $6.50/"+ | 3" Adj. Screw | Safety Block w/Elect. Interlock |
| 42-XXM | 22-33" – $6.50/"+ | 9" Adj. Screw | Safety Block w/Elect. Interlock |
| 42-XXL | 34-60Ó – $6.50/Ó+ | 15ÓAdj. Screw | Safety Block w/Elect. Interlock |
| 42-XXI | 16-21Ó – $6.50/Ó+ | 6Ó Adj. Screw | Safety Block w/Elect. Interlock |
| 42o-XXS | 10-15Ó – $5.50/Ó+ | 3Ó Adj. Screw | Safety Block w/Elect. Interlock |
| 42o-XXM | 16-21" – $5.50/"+ | 9" Adj. Screw | Safety Block w/Elect. Interlock |
| 42o-XXL | 22-30Ó – $5.50Ó/+ | 15ÓAdj. Screw | Safety Block w/Elect. Interlock |
| 42-XXW | 3Ó-60" – $6.50/"+ | Wedge Style | Safety Block w/Elect. Interlock |
| 42oXXW | 3Ó-30Ó – $5.50Ó/+ | Wedge Style | Safety Block w/Elect. Interlock |
| 42o-XXI | 16-21Ó – $5.50Ó/+ | 6Ó Adj. Screw | Safety Block w/Elect. Interlock |
| 62614 | Optn. | 7 x 7 x 7 | Safety Block Holder |
| 62614o | Optn. | 4 x 4 x 6 | Safety Block Holder |
| 51285 | Optn. | Per Each | Handle |
| *XX= MAXIMUM EXTENDED LENGTH OF UNIT (SHUT HEIGHT & STROKE) | |||
Series 42 Protech Safety Blocks specifications
Magblox Magnesium Safety Blocks Protect People & Equipment
Magblox Magnesium Safety Blocks
Magnesium safety blocks are used to comply with OSHA machine tool guarding standards for operator safety.
They also protect your equipment by shearing at a 45-degree angle like a shear pin if subjected to an impact load condition.
