Shock Absorber, RJ Series

Brand :

SMC

Caution

Please refer to the catalog for specification details.
CAD data is not available for some model numbers.
Product images are representative images.

Product Description

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.

Shock Absorber, RJ Series Details

Shock Absorber, RJ Series product image

Shock Absorber, RJ Series Specifications

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
Spring force (N)	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
Weight (g)	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 Display Method

Model number example

RJ0604 structural drawing

RJ0604 Components

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

Components

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

Shock Absorber, RJ Series Dimensions Example

(Units: mm)

Basic Type RJ0604 dimensional drawing

Basic Type

Model		Dimensions							Hexagon Nut Dimensions			With cap
Model		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