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The RJ Series shock absorber stops conveyed objects softly.
[Features]
· The pre-load mechanism and newly developed oil seals provide long-term continuous operation.
· Maximum 10 million operating cycles.
· The unique orifice mechanism provides smooth absorption characteristics to soften the impact on conveyed objects.
· Lineup M6 to M27. Can be used for a wide range of applications.
Part Number
Configured Part Number is shown.

Shock Absorber, RJ Series product image
| Model | Basic Type | RJ0604 | RJ0806 | RJ1007 | RJ1412 | RJ2015 | RJ2725 | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| With cap | - | RJ0806□U | RJ1007□U | RJ1412□U | RJ2015□U | RJ2725□U | ||||||
| Collision speed range | - | H | L | H | L | H | L | H | L | H | L | |
| Max. absorbed energy (J)Note) | 0.5 | 1 | 3 | 10 | 30 | 70 | ||||||
| Outer diameter thread size (mm) | 6 × 0.75 | 8 × 1 | 10 × 1 | 14 × 1.5 | 20 × 1.5 | 27 × 1.5 | ||||||
| Stroke (mm) | 4 | 6 | 7 | 12 | 15 | 25 | ||||||
| Collision speed (m/s) | 0.05 to 1 | 0.05 to 2 | 0.05 to 1 | 0.05 to 2 | 0.05 to 1 | 0.05 to 2 | 0.05 to 1 | 0.05 to 2 | 0.05 to 1 | 0.05 to 1.5 | 0.05 to 1 | |
| Max. operating frequency (cycle/min)Note) | 80 | 80 | 70 | 45 | 25 | 10 | ||||||
| Spring force (N) | Extended | 1.3 | 2.8 | 5.4 | 6.4 | 14.1 | 14.7 | |||||
| Compressed | 3.9 | 5.4 | 8.4 | 17.4 | 29.1 | 34.4 | ||||||
| Max. allowable thrust (N) | 150 | 245 | 422 | 814 | 1,961 | 2,942 | ||||||
| Ambient temperature (°C) | -10 to 60 (no freezing) | |||||||||||
| Weight (g) | Basic Type | 5.5 | 15 | 23 | 65 | 120 | 300 | |||||
| With cap | - | 16 | 25 | 70 | 135 | 350 | ||||||
Note) Max. absorbed energy and max. operating frequency values are at room temperature (20 to 25°C).

Model number example

RJ0604 structural drawing
| Number | Part Name | Material | Treatment |
|---|---|---|---|
| 1 | Tube | Special steel material | Electroless nickel plating |
| 2 | Piston rod | Special steel | Electroless nickel plating |
| 3 | Piston | Stainless steel | - |
| 4 | Bearing | Aluminum bearing alloy | - |
| 5 | Spring guide | Tool steel | Phosphate coating |
| 6 | Return spring | Steel wire | Zinc trivalent chromate |
| 7 | Stopper | Stainless steel | - |
| 8 | O-ring | Synthetic rubber | - |
| 9 | Plug | Special steel material | Electroless nickel plating |
| 10 | Accumulator | Synthetic rubber | - |
| 11 | Rod packing | Synthetic rubber | - |
| 12 | Hex nut | Carbon steel | Zinc trivalent chromate |

RJ08□□ structural drawing

RJ10□□/RJ14□□/RJ2015/RJ2725 structural drawing
| Number | Part Name | Material | Treatment |
|---|---|---|---|
| 1 | Tube | Special steel material | Electroless nickel plating |
| 2 | Piston rod | Special steel | Electroless nickel plating |
| 3 | Piston | Stainless steel | - |
| 4 | Bearing | Special bearing material | - |
| 5 | Spring guide | Tool steel | Zinc trivalent chromate |
| 6 | Lock ring | Copper | - |
| 7 | Return spring | Steel wire | Zinc trivalent chromate |
| 8 | Stopper | Structural steel | Electroless nickel plating |
| 9 | O-ring | Synthetic rubber | - |
| 10 | Plug | Special steel material | H: Electroless nickel plating L: Black electroless nickel plating |
| 11 | Accumulator | Synthetic rubber | - |
| 12 | Rod gasket | Synthetic rubber | - |
| 13 | O-ring | Synthetic rubber | - |
| 14 | Cap bracket | Structural steel | Zinc trivalent chromate |
| 15 | Cap | Urethane | - |
| 16 | Hex nut | Carbon steel | Zinc trivalent chromate |
(Units: mm)

Basic Type RJ0604 dimensional drawing
| Model | Dimensions | Hexagon Nut Dimensions | With cap | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D | H | LL | MM | S | G | K | B | C | h | E | LL | Z | ||
| RJ0806□ | RJ0806□U | 2.8 | 6 | 46.8 | M8 × 1.0 | 40.8 | 5 | 7 | 12 | 13.9 | 4 | 6.8 | 55.3 | 8.5 |
| RJ1007□ | RJ1007□U | 3 | 7 | 52.3 | M10 × 1.0 | 45.3 | 7 | 9 | 14 | 16.2 | 4 | 8.7 | 62.3 | 10 |
| RJ1412□ | RJ1412□U | 5 | 12 | 79.1 | M14 × 1.5 | 67.1 | 8 | 12 | 19 | 21.9 | 6 | 12 | 92.5 | 13.5 |
| RJ2015□ | RJ2015□U | 6 | 15 | 88.2 | M20 × 1.5 | 73.2 | 10 | 17 | 27 | 31.2 | 6 | 18 | 105.2 | 17 |
| RJ2725□ | RJ2725□U | 8 | 25 | 124 | M27 × 1.5 | 99 | 12 | 24 | 36 | 41.6 | 6 | 25 | 147 | 23 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Nominal Mounting Screw [M] | Overall Length L (mm) | Stroke S (mm) | Max. Absorbed Energy (J) | Collision speed range (m/s) | With cap | Option |
|---|---|---|---|---|---|---|---|---|---|---|---|
MYR 210.58 | 1 Piece(s) | 3 Day(s) | 6 | 33.3 | 4 | 0.5 | 0.05 to 1 | Basic Type | Hexagon nut: 2 pcs. | ||
- | 1 Piece(s) | Quote | 6 | 33.3 | 4 | 0.5 | 0.05 to 1 | Basic Type | Hex nut: 3 pcs. | ||
MYR 210.82 | 1 Piece(s) | 3 Day(s) | 6 | 33.3 | 4 | 0.5 | 0.05 to 1 | Basic Type | None | ||
MYR 298.42 | 1 Piece(s) | 21 Day(s) | 6 | 33.3 | 4 | 0.5 | 0.05 to 1 | Basic Type | Hex Nut: 2 pcs. / stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 6 | 33.3 | 4 | 0.5 | 0.05 to 1 | Basic Type | Hex nut: 3 pcs. / Stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 6 | 33.3 | 4 | 0.5 | 0.05 to 1 | Basic Type | Stopper nut: 1 pc. | ||
MYR 259.35 | 1 Piece(s) | 3 Day(s) | 8 | 46.8 | 6 | 1 | 0.05 to 2 | Basic Type | Hexagon nut: 2 pcs. | ||
MYR 347.42 | 1 Piece(s) | 21 Day(s) | 8 | 46.8 | 6 | 1 | 0.05 to 2 | Basic Type | Hex nut: 3 pcs. | ||
MYR 189.73 | 1 Piece(s) | 14 Day(s) or more | 8 | 46.8 | 6 | 1 | 0.05 to 2 | Basic Type | None | ||
MYR 333.30 | 1 Piece(s) | 21 Day(s) | 8 | 46.8 | 6 | 1 | 0.05 to 2 | Basic Type | Hexagon nut: 2 pcs. / Stopper nut: 1 pc. | ||
MYR 347.42 | 1 Piece(s) | 21 Day(s) | 8 | 46.8 | 6 | 1 | 0.05 to 2 | Basic Type | Hex nut: 3 pcs. / Stopper nut: 1 pc. | ||
MYR 393.42 | 1 Piece(s) | Quote | 8 | 46.8 | 6 | 1 | 0.05 to 2 | Basic Type | Stopper nut: 1 pc. | ||
MYR 264.72 | 1 Piece(s) | 43 Day(s) | 8 | 55.3 | 6 | 1 | 0.05 to 2 | With urethane cap | Hexagon nut: 2 pcs. | ||
- | 1 Piece(s) | Quote | 8 | 55.3 | 6 | 1 | 0.05 to 2 | With urethane cap | Hex nut: 3 pcs. | ||
- | 1 Piece(s) | Quote | 8 | 55.3 | 6 | 1 | 0.05 to 2 | With urethane cap | None | ||
MYR 340.33 | 1 Piece(s) | 21 Day(s) | 8 | 55.3 | 6 | 1 | 0.05 to 2 | With urethane cap | Hexagon nut: 2 pcs. / Stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 8 | 55.3 | 6 | 1 | 0.05 to 2 | With urethane cap | Hex nut: 3 pcs. / Stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 8 | 55.3 | 6 | 1 | 0.05 to 2 | With urethane cap | Stopper nut: 1 pc. | ||
MYR 259.35 | 1 Piece(s) | 3 Day(s) | 8 | 46.8 | 6 | 1 | 0.05 to 1 | Basic Type | Hexagon nut: 2 pcs. | ||
- | 1 Piece(s) | Quote | 8 | 46.8 | 6 | 1 | 0.05 to 1 | Basic Type | Hex nut: 3 pcs. | ||
MYR 189.90 | 1 Piece(s) | 14 Day(s) or more | 8 | 46.8 | 6 | 1 | 0.05 to 1 | Basic Type | None | ||
MYR 333.30 | 1 Piece(s) | 21 Day(s) | 8 | 46.8 | 6 | 1 | 0.05 to 1 | Basic Type | Hexagon nut: 2 pcs. / Stopper nut: 1 pc. | ||
MYR 347.42 | 1 Piece(s) | 21 Day(s) | 8 | 46.8 | 6 | 1 | 0.05 to 1 | Basic Type | Hex nut: 3 pcs. / Stopper nut: 1 pc. | ||
MYR 333.30 | 1 Piece(s) | 21 Day(s) | 8 | 46.8 | 6 | 1 | 0.05 to 1 | Basic Type | Stopper nut: 1 pc. | ||
MYR 264.72 | 1 Piece(s) | 3 Day(s) | 8 | 55.3 | 6 | 1 | 0.05 to 1 | With urethane cap | Hexagon nut: 2 pcs. | ||
- | 1 Piece(s) | Quote | 8 | 55.3 | 6 | 1 | 0.05 to 1 | With urethane cap | Hex nut: 3 pcs. | ||
- | 1 Piece(s) | Quote | 8 | 55.3 | 6 | 1 | 0.05 to 1 | With urethane cap | None | ||
MYR 194.35 | 1 Piece(s) | 14 Day(s) or more | 8 | 55.3 | 6 | 1 | 0.05 to 1 | With urethane cap | Hexagon nut: 2 pcs. / Stopper nut: 1 pc. | ||
MYR 354.03 | 1 Piece(s) | 21 Day(s) | 8 | 55.3 | 6 | 1 | 0.05 to 1 | With urethane cap | Hex nut: 3 pcs. / Stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 8 | 55.3 | 6 | 1 | 0.05 to 1 | With urethane cap | Stopper nut: 1 pc. | ||
MYR 333.30 | 1 Piece(s) | 21 Day(s) | 10 | 52.3 | 7 | 3 | 0.05 to 2 | Basic Type | Hexagon nut: 2 pcs. | ||
MYR 198.15 | 1 Piece(s) | 14 Day(s) or more | 10 | 52.3 | 7 | 3 | 0.05 to 2 | Basic Type | Hex nut: 3 pcs. | ||
MYR 190.23 | 1 Piece(s) | 14 Day(s) or more | 10 | 52.3 | 7 | 3 | 0.05 to 2 | Basic Type | None | ||
MYR 333.30 | 1 Piece(s) | 21 Day(s) | 10 | 52.3 | 7 | 3 | 0.05 to 2 | Basic Type | Hexagon nut: 2 pcs. / Stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 10 | 52.3 | 7 | 3 | 0.05 to 2 | Basic Type | Hex nut: 3 pcs. / Stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 10 | 52.3 | 7 | 3 | 0.05 to 2 | Basic Type | Stopper nut: 1 pc. | ||
MYR 264.60 | 1 Piece(s) | 43 Day(s) | 10 | 62.3 | 7 | 3 | 0.05 to 2 | With urethane cap | Hexagon nut: 2 pcs. | ||
- | 1 Piece(s) | Quote | 10 | 62.3 | 7 | 3 | 0.05 to 2 | With urethane cap | Hex nut: 3 pcs. | ||
- | 1 Piece(s) | Quote | 10 | 62.3 | 7 | 3 | 0.05 to 2 | With urethane cap | None | ||
MYR 340.33 | 1 Piece(s) | 21 Day(s) | 10 | 62.3 | 7 | 3 | 0.05 to 2 | With urethane cap | Hexagon nut: 2 pcs. / Stopper nut: 1 pc. | ||
MYR 354.47 | 1 Piece(s) | 21 Day(s) | 10 | 62.3 | 7 | 3 | 0.05 to 2 | With urethane cap | Hex nut: 3 pcs. / Stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 10 | 62.3 | 7 | 3 | 0.05 to 2 | With urethane cap | Stopper nut: 1 pc. | ||
MYR 173.48 | 1 Piece(s) | 9 Day(s) or more | 10 | 52.3 | 7 | 3 | 0.05 to 1 | Basic Type | Hexagon nut: 2 pcs. | ||
- | 1 Piece(s) | Quote | 10 | 52.3 | 7 | 3 | 0.05 to 1 | Basic Type | Hex nut: 3 pcs. | ||
MYR 190.23 | 1 Piece(s) | 14 Day(s) or more | 10 | 52.3 | 7 | 3 | 0.05 to 1 | Basic Type | None | ||
MYR 333.30 | 1 Piece(s) | 21 Day(s) | 10 | 52.3 | 7 | 3 | 0.05 to 1 | Basic Type | Hexagon nut: 2 pcs. / Stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 10 | 52.3 | 7 | 3 | 0.05 to 1 | Basic Type | Hex nut: 3 pcs. / Stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 10 | 52.3 | 7 | 3 | 0.05 to 1 | Basic Type | Stopper nut: 1 pc. | ||
MYR 177.05 | 1 Piece(s) | 9 Day(s) or more | 10 | 62.3 | 7 | 3 | 0.05 to 1 | With urethane cap | Hexagon nut: 2 pcs. | ||
- | 1 Piece(s) | Quote | 10 | 62.3 | 7 | 3 | 0.05 to 1 | With urethane cap | Hex nut: 3 pcs. | ||
MYR 340.33 | 1 Piece(s) | 21 Day(s) | 10 | 62.3 | 7 | 3 | 0.05 to 1 | With urethane cap | None | ||
MYR 340.33 | 1 Piece(s) | 21 Day(s) | 10 | 62.3 | 7 | 3 | 0.05 to 1 | With urethane cap | Hexagon nut: 2 pcs. / Stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 10 | 62.3 | 7 | 3 | 0.05 to 1 | With urethane cap | Hex nut: 3 pcs. / Stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 10 | 62.3 | 7 | 3 | 0.05 to 1 | With urethane cap | Stopper nut: 1 pc. | ||
MYR 232.06 | 1 Piece(s) | 9 Day(s) or more | 14 | 79.1 | 12 | 10 | 0.05 to 2 | Basic Type | Hexagon nut: 2 pcs. | ||
- | 1 Piece(s) | Quote | 14 | 79.1 | 12 | 10 | 0.05 to 2 | Basic Type | Hex nut: 3 pcs. | ||
MYR 510.20 | 1 Piece(s) | Quote | 14 | 79.1 | 12 | 10 | 0.05 to 2 | Basic Type | None | ||
MYR 255.91 | 1 Piece(s) | 14 Day(s) or more | 14 | 79.1 | 12 | 10 | 0.05 to 2 | Basic Type | Hexagon nut: 2 pcs. / Stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 14 | 79.1 | 12 | 10 | 0.05 to 2 | Basic Type | Hex nut: 3 pcs. / Stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 14 | 79.1 | 12 | 10 | 0.05 to 2 | Basic Type | Stopper nut: 1 pc. | ||
MYR 239.18 | 1 Piece(s) | 9 Day(s) or more | 14 | 92.6 | 12 | 10 | 0.05 to 2 | With urethane cap | Hexagon nut: 2 pcs. | ||
MYR 475.42 | 1 Piece(s) | 21 Day(s) | 14 | 92.6 | 12 | 10 | 0.05 to 2 | With urethane cap | Hex nut: 3 pcs. | ||
- | 1 Piece(s) | Quote | 14 | 92.6 | 12 | 10 | 0.05 to 2 | With urethane cap | None | ||
MYR 455.12 | 1 Piece(s) | 21 Day(s) | 14 | 92.6 | 12 | 10 | 0.05 to 2 | With urethane cap | Hexagon nut: 2 pcs. / Stopper nut: 1 pc. | ||
MYR 548.18 | 1 Piece(s) | Quote | 14 | 92.6 | 12 | 10 | 0.05 to 2 | With urethane cap | Hex nut: 3 pcs. / Stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 14 | 92.6 | 12 | 10 | 0.05 to 2 | With urethane cap | Stopper nut: 1 pc. | ||
MYR 232.06 | 1 Piece(s) | 9 Day(s) or more | 14 | 79.1 | 12 | 10 | 0.05 to 1 | Basic Type | Hexagon nut: 2 pcs. | ||
- | 1 Piece(s) | Quote | 14 | 79.1 | 12 | 10 | 0.05 to 1 | Basic Type | Hex nut: 3 pcs. | ||
MYR 255.91 | 1 Piece(s) | 14 Day(s) or more | 14 | 79.1 | 12 | 10 | 0.05 to 1 | Basic Type | None | ||
- | 1 Piece(s) | Quote | 14 | 79.1 | 12 | 10 | 0.05 to 1 | Basic Type | Hexagon nut: 2 pcs. / Stopper nut: 1 pc. | ||
MYR 268.10 | 1 Piece(s) | 14 Day(s) or more | 14 | 79.1 | 12 | 10 | 0.05 to 1 | Basic Type | Hex nut: 3 pcs. / Stopper nut: 1 pc. | ||
MYR 255.91 | 1 Piece(s) | 17 Day(s) or more | 14 | 79.1 | 12 | 10 | 0.05 to 1 | Basic Type | Stopper nut: 1 pc. | ||
MYR 455.12 | 1 Piece(s) | 21 Day(s) | 14 | 92.6 | 12 | 10 | 0.05 to 1 | With urethane cap | Hexagon nut: 2 pcs. | ||
- | 1 Piece(s) | Quote | 14 | 92.6 | 12 | 10 | 0.05 to 1 | With urethane cap | Hex nut: 3 pcs. | ||
- | 1 Piece(s) | Quote | 14 | 92.6 | 12 | 10 | 0.05 to 1 | With urethane cap | None | ||
- | 1 Piece(s) | Quote | 14 | 92.6 | 12 | 10 | 0.05 to 1 | With urethane cap | Hexagon nut: 2 pcs. / Stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 14 | 92.6 | 12 | 10 | 0.05 to 1 | With urethane cap | Hex nut: 3 pcs. / Stopper nut: 1 pc. | ||
MYR 455.12 | 1 Piece(s) | 21 Day(s) | 14 | 92.6 | 12 | 10 | 0.05 to 1 | With urethane cap | Stopper nut: 1 pc. | ||
MYR 390.48 | 1 Piece(s) | 3 Day(s) | 20 | 88.2 | 15 | 30 | 0.05 to 2 | Basic Type | Hexagon nut: 2 pcs. | ||
MYR 521.78 | 1 Piece(s) | 21 Day(s) | 20 | 88.2 | 15 | 30 | 0.05 to 2 | Basic Type | Hex nut: 3 pcs. | ||
MYR 288.10 | 1 Piece(s) | 14 Day(s) or more | 20 | 88.2 | 15 | 30 | 0.05 to 2 | Basic Type | None | ||
MYR 501.03 | 1 Piece(s) | 21 Day(s) | 20 | 88.2 | 15 | 30 | 0.05 to 2 | Basic Type | Hexagon nut: 2 pcs. / Stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 20 | 88.2 | 15 | 30 | 0.05 to 2 | Basic Type | Hex nut: 3 pcs. / Stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 20 | 88.2 | 15 | 30 | 0.05 to 2 | Basic Type | Stopper nut: 1 pc. | ||
MYR 270.53 | 1 Piece(s) | 9 Day(s) or more | 20 | 105.2 | 15 | 30 | 0.05 to 2 | With urethane cap | Hexagon nut: 2 pcs. | ||
- | 1 Piece(s) | Quote | 20 | 105.2 | 15 | 30 | 0.05 to 2 | With urethane cap | Hex nut: 3 pcs. | ||
- | 1 Piece(s) | Quote | 20 | 105.2 | 15 | 30 | 0.05 to 2 | With urethane cap | None | ||
MYR 514.72 | 1 Piece(s) | 21 Day(s) | 20 | 105.2 | 15 | 30 | 0.05 to 2 | With urethane cap | Hexagon nut: 2 pcs. / Stopper nut: 1 pc. | ||
- | 1 Piece(s) | Quote | 20 | 105.2 | 15 | 30 | 0.05 to 2 | With urethane cap | Hex nut: 3 pcs. / Stopper nut: 1 pc. | ||
MYR 590.97 | 1 Piece(s) | Quote | 20 | 105.2 | 15 | 30 | 0.05 to 2 | With urethane cap | Stopper nut: 1 pc. |
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| Structure | Fixed Type | Main Body, Related Components | Main Body | Orifice Type | Single Orifice Type |
|---|---|---|---|---|---|
| Operating Environment | Standard | Body Material | Steel |
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