SITEMA Satisfies OSHA Requirements
SITEMA safety catchers have been evaluated according to OSHA Directive CPL 02-01-043. OSHA has determined that the SITEMA safety catcher meets all of the requirements of the directive.

Download installation and maintenance manuals, order spare parts, and find tutorial videos to help with your chip conveyor installation and operation.
Download installation and maintenance manuals, order spare parts, and find tutorial videos to help with your chip conveyor installation and operation.
Hennig Power Protection is a dedicated division specializing in custom-engineered generator enclosures, fuel systems, and power infrastructure for mission-critical applications across data centers, healthcare, telecommunications, and industrial facilities.
Precision machining, fabrication & welding services from our Rockford, IL facility. Complete manufacturing solutions with ISO-certified quality.
Precision machining for turbine...
Pallet delivery, robotic tending & software for lights-out production
CNC machining centers, lathes, grinders & multi-axis equipment
Safety systems & rod locks for hydraulic & mechanical presses
Engineered for precise bearing mounting, the MSA series excels in compact assemblies with its optimized design for angular contact and cylindrical roller bearings.
During the clamping process (tightening the clamping screw), no movement takes place at the end face and at the main thread of the clamping nut. This precludes the possibility of friction loss, and so eliminates the cause for the poor efficiency of conventional nuts.
| Product ID | 3D CAD | ød₁ (mm) [ISO-5H] | ød₂ (mm) [h11] | ød₆ (mm) [h11] | øh (mm) | Clamping Screw (ISO 4762) | Clamping Screw Mₐ (Nm) | Number Clamping Screws | Calc Factor A (mm) | Calc Factor B (N) | Breaking Load (kN) | Breakaway Torque (Nm) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MSA 20x1 | M20x1 | 35 | 31 | 17 | M3 | 2 | 5 | 1.281 | 3938 | 60 | 44 | ||
| MSA 25x1.5 | M25x1.5 | 40 | 36 | 19 | M3 | 2 | 5 | 1.633 | 3859 | 83 | 46 | ||
| MSA 30x1.5 | M30x1.5 | 45 | 41 | 19 | M3 | 2 | 5 | 1.921 | 3780 | 100 | 59 | ||
| MSA 35x1.5 | M35x1.5 | 53 | 48 | 22 | M4 | 2.9 | 4 | 2.21 | 3666 | 118 | 82 | ||
| MSA 40x1.5 | M40x1.5 | 58 | 54 | 22 | M4 | 2.9 | 4 | 2.5 | 3588 | 123 | 95 | ||
| MSA 45x1.5 | M45x1.5 | 64 | 59 | 23 | M4 | 2.9 | 5 | 2.789 | 4388 | 134 | 133 | ||
| MSA 50x1.5 | M50x1.5 | 69 | 64 | 24 | M4 | 2.9 | 6 | 3.079 | 5148 | 149 | 172 | ||
| MSA 55x1.5 | M55x1.5 | 73 | 69 | 24 | M4 | 2.9 | 6 | 3.369 | 5031 | 141 | 188 | ||
| MSA 60x1.5 | M60x1.5 | 78 | 74 | 24 | M4 | 2.9 | 6 | 3.655 | 4914 | 143 | 203 | ||
| MSA 65x1.5 | M65x1.5 | 83 | 79 | 24 | M4 | 2.9 | 7 | 3.948 | 5597 | 273 | 248 | ||
| MSA 70x1.5 | M70x1.5 | 93 | 88 | 27 | M5 | 6 | 6 | 4.238 | 7620 | 396 | 395 | ||
| MSA 75x1.5 | M75x1.5 | 98 | 93 | 27 | M5 | 6 | 6 | 4.525 | 7430 | 401 | 422 | ||
| MSA 80x2 | M80x2 | 103 | 98 | 28 | M5 | 6 | 6 | 4.873 | 7239 | 430 | 385 | ||
| MSA 85x2 | M85x2 | 112 | 106 | 30 | M6 | 10 | 6 | 5.168 | 9990 | 496 | 554 | ||
| MSA 90x2 | M90x2 | 117 | 111 | 30 | M6 | 10 | 6 | 5.453 | 9720 | 501 | 596 | ||
| MSA 95x2 | M95x2 | 122 | 116 | 30 | M6 | 10 | 6 | 5.744 | 9450 | 508 | 605 | ||
| MSA 100x2 | M100x2 | 130 | 123 | 32 | M6 | 10 | 6 | 6.033 | 9180 | 594 | 728 | ||
| MSA 105x2 | M105x2 | 135 | 128 | 32 | M6 | 10 | 6 | 6.321 | 8910 | 599 | 753 | ||
| MSA 110x2 | M110x2 | 140 | 133 | 32 | M6 | 10 | 6 | 6.616 | 8640 | 606 | 773 | ||
| MSA 120x2 | M120x2 | 155 | 145 | 36 | M6 | 10 | 6 | 7.193 | 8100 | 886 | 928 | ||
| MSA 130x3 | M130x3 | 165 | 155 | 36 | M6 | 10 | 6 | 7.895 | 7560 | 875 | 1049 | ||
| MSA 140x3 | M140x3 | 180 | 170 | 36 | M6 | 10 | 8 | 8.475 | 9360 | 1032 | 1357 | ||
| MSA 150x3 | M150x3 | 190 | 180 | 36 | M6 | 10 | 8 | 9.05 | 8640 | 1050 | 1468 | ||
| MSA 160x3 | M160x3 | 205 | 195 | 40 | M8 | 25 | 8 | 9.633 | 14520 | 1199 | 3136 | ||
| MSA 170x3 | M170x3 | 215 | 205 | 40 | M8 | 25 | 8 | 10.213 | 13200 | 1213 | 3241 | ||
| MSA 180x3 | M180x3 | 230 | 220 | 40 | M8 | 25 | 8 | 10.789 | 11880 | 1399 | 3598 | ||
| MSA 190x3 | M190x3 | 240 | 230 | 40 | M8 | 25 | 8 | 11.362 | 10560 | 1158 | 3803 | ||
| MSA 200x3 | M200x3 | 245 | 235 | 40 | M8 | 25 | 8 | 11.948 | 9240 | 1021 | 3810 |
Each model below is routed to the best next step based on availability.
SITEMA safety catchers have been evaluated according to OSHA Directive CPL 02-01-043. OSHA has determined that the SITEMA safety catcher meets all of the requirements of the directive.
When it comes to reliable and safe machine operation in severe environments, having the right components makes a significant difference. That's why we are excited to introduce the RCHX Exclusion Series Rod Lock — a hydraulically driven rod lock designed specifically for harsh conditions and submersible applications. This latest innovation is a modified version of the original AMLOK RCH Rod Lock, re-engineered to withstand the most demanding applications.
In the world of modern automation, there's a clear shift toward fully electric systems. Learn about the new electric safety brake from Sitema.
Both Hennig and its sister company, Advanced Machine & Engineering, now operate under the Hennig brand.
Same team. Same products. Same company. Different look.
Unifying the two brands under one name clarifies our offerings and makes them easier for you to navigate — one website, one team, one trusted partner.