BMSH-202, 20 ton Capacity, 49 mm Stroke, Single Acting Hollow Cylinder
RC-TRIO is the next generation of the legendary Enerpac RC-Series single acting hydraulic cylinders. These hydraulic jacks include many advanced features to ensure superior durability, versatility, and productivity.
Overview
THE BMSH-SERIES IS A SPRING RETURN HOLLOW PISTON ROD CYLINDER. The hollow piston allows for a rod or cable to be inserted through the entire body length. They can be used in tensioning, load testing and bush extracting and maintenance applications. All RHS-Series cylinders feature a hard chrome cylinder bore and piston rod for maximum corrosion resistance and a bronze overlay piston bearing area to reduce scoring and increase service life. All cylinders incorporate a bolt on removable steel base plate for extra protection.
Product Features

Product Specifications
| Maximum Operating Pressure (bar) | 700 |
| Capacity Class (tonnage) | 5 |
| Maximum Cylinder Capacity Advance (kN) | 45 |
| Stroke (mm) | 16 |
| Collapsed Height A (mm) | 41 |
| Extended Height B (mm) | 57 |
| Return Type | Single-Acting, Spring Return |
| Plunger Type | Solid |
| Material | Steel |
| Cylinder Effective Area Advance (cm2) | 6,4 |
| Oil Capacity Advance (cm3) | 10 |
| Surface Treatment | Paint |
| Coupler | CR400 Coupler |
| Weight (kg) | 1,0 |
Product Dimensions
| Collapsed Height A | 41 mm |
| Extended Height B | 57 mm |
| Outside Diameter D | 58 mm |
| Cylinder Bore Diameter E | 28.6 mm |
| Plunger Diameter F | 25.4 mm |
| Base to Advance Port H | 19 mm |
| Plunger Thread Length P | – |
| Base Mounting Holes Bolt Circle U | 29 mm |
| Base Mounting Holes Thread V | 5,6 mm |
| Collar Thread W | – |
| Collar Thread Length X | – |
| Base Mounting Holes Thread Depth Z | – |

Series Comparison
| MODEL | CYLINDER CAPACITY @ 10,000 PSI (700 BAR) | STROKE | CYLINDER EFFECTIVE AREA | OIL CAPACITY | COLLAPSED HEIGHT | EXTENDED HEIGHT | COLLAR THREAD | COLLAR THREAD LENGTH | OUTSIDE DIAMETER | PISTON DIAMETER | PISTON INTERNAL THREAD | PISTON THREAD LENGTH | BASE FIXTURING HOLES | CENTER HOLE DIAMETER | WEIGHT | ||
| BOLT CIRCLE | THREAD | THREAD DEPTH | |||||||||||||||
| A | B | C | X | D | F | O | P | U | V | Z | Y | ||||||
| METRIC TON (US TON) | MM | CM2 | CM3 | MM | MM | in | MM | MM | MM | – | MM | MM | UNC | MM | MM | KG | |
| BMSH-120 | 13 (14.3) | 8 | 18.4 | 14.7 | 55 | 63 | 2 3/4″-16 | 30 | 70 | 35 | 3/4”-16 UN | 16 | 50.8 | 5/16″-18 | 8.9 | 19.6 | 1.7 |
| BMSH-121 | 42 | 18.4 | 77.3 | 120 | 162 | 2 3/4″-16 | 30 | 70 | 35 | – | – | _ | _ | – | 19.6 | 3 | |
| BMSH-123 | 76 | 18.4 | 140 | 184 | 260 | 2 3/4″-16 | 30 | 70 | 35 | – | – | 50.8 | 5/16″-18 | 8.9 | 19.6 | 4.7 | |
| BMSH-202 | 20 (22) | 49 | 32.8 | 161 | 162 | 211 | 3 7/8”-12 | 38 | 99 | 55 | 1 9/16”-16 UN | 19 | 82.5 | 3/8“-16 | 9.4 | 26.9 | 8 |
| BMSH-206 | 155 | 32.8 | 508 | 306 | 461 | 3 7/8”-12 | 38 | 99 | 55 | 1 9/16”-16 UN | 19 | 82.5 | 3/8“-16 | 9.4 | 26.9 | 14.5 | |
| BMSH-302 | 30 (33) | 64 | 48 | 307 | 179 | 242 | 4 1/2“-12 | 42 | 115 | 65 | 1 13/16”-16 UN | 22 | 92.2 | 3/8“-16 | 14 | 33.3 | 11.5 |
| BMSH-306 | 155 | 48 | 744 | 330 | 485 | 4 1/2“-12 | 42 | 115 | 65 | 1 13/16”-16 UN | 22 | 92.2 | 3/8“-16 | 14 | 33.3 | 23 | |
| BMSH-603 | 60 (66) | 76 | 87.4 | 664 | 247 | 323 | 6 1/4”-12 | 48 | 159 | 92 | 2 3/4”-16 UN | 19 | 130.3 | 1/2“-13 | 14 | 53.8 | 30 |
| BMSH-606 | 153 | 87.4 | 1337 | 323 | 476 | 6 1/4”-12 | 48 | 159 | 92 | 2 3/4”-16 UN | 19 | 130.3 | 1/2“-13 | 14 | 53.8 | 37.5 | |
| BMSH-1003 | 95 (104.5) | 76 | 135.2 | 1028 | 254 | 330 | 8 3/8“-12 | 60 | 212 | 127 | 4”-16 UN | 25 | 177.8 | 5/8”-11 | 20.1 | 79 | 62 |