Brochure

ManualsBrandsSMC ManualsActuator AccessoriesShock Absorber, M6, 0.05 ... 1 m/s, 0.5J, Stroke 4mm

Absorbing time [sec]

Energy [J]

RJ08 absorbing time

0.0

0.1

0.2

0.3

0.4

0.5

0.6

00.5

RJ-Short stroke type

RJ-H

RJ-L

Resistive force

Stroke

Smooth absorption characteristic

Softened impact

Soft rebounding after collision

∗ Reference values when cylinder thrust

is 157 N.

Absorbing time varies depending on

cylinder collision conditions.

Rich variation

Short stroke type for improving takt time for short stroke

actuators.

Shock Absorber/Soft type

M6, M8, M10, M14, M20, M27

10 million cycles

Stops transported objects softly

A smooth absorption characteristic is achieved by adopting the

unique orifice mechanism to ease the impacts on conveyed objects.

M10M8M6 M27M20 M14

M14M10M8

M10M8 M27M20 M14

3 sizes M6, M20, M27 are added

A wider range of usage is possible by the addition of

the three sizes. A type with cap is also available.

 Mounting interchangeable with the RB series.

With cap

Short stroke type

Basic type

Lineup M6 – M27

NewNew

Improved durability

Long-term continuous operation has been realised

by employing the pre-load mechanism,

newly-developed oil seals.

Maximum operating cycles

CAT.EUS20-200D-UK

Series RJ

New

RoHS

Summary of content (16 pages)

PAGE 1
Shock Absorber/Soft type New M6, M8, M10, M14, M20, M27 Improved durability RoHS Long-term continuous operation has been realised by employing the pre-load mechanism, newly-developed oil seals. Maximum operating cycles 10 million cycles Stops transported objects softly 3 sizes M6, M20, M27 are added A smooth absorption characteristic is achieved by adopting the unique orifice mechanism to ease the impacts on conveyed objects. A wider range of usage is possible by the addition of the three sizes.
PAGE 2
Two types of absorbed energy are available as standard. Selectable in accordance with impact mass and collision speed Soft type and short stroke type are available as standard so as to be selectable according to usage conditions (impact mass, collision speed). 앲: Newly added model Max. Absorbed Energy Collision speed [m/s] Model 앲 RJ0604 Soft type Short stroke type 1 0.05 to 1 RJ0806H/L H : 0.05 to 2/L : 0.05 to 1 RJ1007H/L H : 0.05 to 2/L : 0.05 to 1 RJ1412H/L H : 0.05 to 2/L : 0.
PAGE 3
Shock Absorbers Series Variations 앬Shock Absorbers Series RJ/RB/RBL/RBQ Model Series ( ): With urethane cap ∗ Series RQB ( ): With bumper 앲 RJ0604 Series RJ Soft type New Basic type 앲 앲 앲 앲 Short stroke type Series RB Basic type Series RBL Coolant resistant type Basic type Series RBQ Short type Basic type Load Allowable eccentric angle ≤ RJ0806H(U) RJ0806L(U) RJ1007H(U) RJ1007L(U) RJ1412H(U) RJ1412L(U) RJ2015H(U) RJ2015L(U) RJ2725H(U) RJ2725L(U) RJ0805(U) RJ1006(U) RJ1410(U) RB0604 RB0805(C) R
PAGE 4
Shock Absorber Series RJ Model Selection 1 Model Selection Graph ∗ The model selection graphs q to !2 are at room temperature (20 to 25°C). Type of Impact Free horizontal impact Impact of air cylinder actuation (Horizontal/Upward) Shock absorber Load Load Check “Model Selection Step” z to c prior to use.
PAGE 5
Model Selection Model Selection Graph Series RJ ∗ The model selection graphs !3 to @4 are at room temperature (20 to 25°C). Type of Impact Free fall impact Load Check “Model Selection Step” z to c prior to use.
PAGE 6
Shock Absorber Series RJ Model Selection 2 Model Selection Model Selection Step Example of Selection 1 Type of impact Impact of thrust of load (Horizontal) Impact of thrust of load (Downward) Impact of thrust of load (Upward) Free horizontal impact (Impact of inertial force) Free fall impact Swing impact (With torque) 2 Operating conditions Symbol m υ h ω r F T n t μ Operating conditions Unit Impact mass kg Collision speed m/s Dropping height m Angular speed rad/s m Distance between rotational cente
PAGE 7
Model Selection Series RJ 1 Type of Impact Impact of thrust of load (Downward) (Impact of thrust from sources other than air cylinder actuation) Type of impact Impact of thrust of load (Upward) (Impact of thrust from sources other than air cylinder actuation) Load on conveyor (Horizontal) Swing impact (With torque) Load Note 3) Lo Load ad Load Note 1) Collision speed υ Kinetic energy E1 Thrust energy E2 Absorbed energy E Note 2) Equivalent mass Me υ υ υ 1 — ·m·υ 2 1 — ·m·υ 2 2 ω·
PAGE 8
Shock Absorber RoHS Series RJ How to Order RJ 0604 RJ 0806 H U Shock absorber/soft type Option O.D. thread size/Stroke Symbol O.D. thread size 0604 0806 1007 1412 2015 2725 Stroke 6 mm 4 mm 8 mm 6 mm 10 mm 7 mm 14 mm 12 mm 20 mm 15 mm 27 mm 25 mm Hexagon nut Stopper nut 2 pcs. — J N S SJ SN 3 pcs. — — — 2 pcs. 1 pc. 3 pcs. 1 pc. — 1 pc. Note) RJ0604: "—" or "N" only With cap Collision speed range H L Symbol — 0.05 to 2 m/s — Basic type U With urethane cap 0.
PAGE 9
Shock Absorber Series RJ RoHS How to Order RJ 0805 U Short stroke type Shock absorber/soft type Option O.D. thread size/Stroke Symbol O.D. thread size 0805 1006 1410 Stroke 8 mm 5 mm 10 mm 6 mm 14 mm 10 mm Symbol — Hexagon nut Stopper nut 2 pcs. — J N S SJ SN 3 pcs. — — — 2 pcs. 1 pc. 3 pcs. 1 pc. — 1 pc. With cap — Basic type U With urethane cap Specifications Model Basic type With cap Max. absorbed energy [J] Note) O.D.
PAGE 10
Series RJ Construction RJ0604 Component Parts w u !1 r !0 q e t !2 y i o No.
PAGE 11
Shock Absorber Series RJ Dimensions Basic type M6 x 0.75 2 1 ø5 ø5 (9.2) ø1.8 RJ0604 0.7 8 1.8 23.5 4 29.3 33.3 RJ08 , 10 , 14 , 2015, 2725 h C øD MM G K H S B LL With cap Cap h MM øE Cap bracket G Z H S LL Basic type Dimensions Model RJ0806 RJ1007 RJ1412 RJ2015 RJ2725 RJ0806 U RJ1007 U RJ1412 U RJ2015 U RJ2725 U Hexagon nut With cap D H LL MM S G K B C h E LL Z 2.8 6 46.8 M8 x 1.0 40.8 5 7 12 13.9 4 6.8 55.3 8.5 3 7 52.3 M10 x 1.
PAGE 12
Series RJ Hexagon Nut (2 pcs.are equipped as standard) Option Stopper nut For basic type For with cap Material: Carbon steel Treatment: Zinc trivalent chromating Part no. For basic type For with cap RB08S RB10S RB14S RB20S RB27S RBC08S RBC10S RBC14S RBC20S RBC27S Dimensions Applicable absorber B C h1 h2 MM d f RJ08 12 13.9 6.5 23 M8 x 1.0 9 15 RJ10 14 16.2 8 23 M10 x 1.0 11 15 RJ14 19 21.9 11 31 M14 x 1.5 15 20 RJ2015 27 31.2 16 40 M20 x 1.
PAGE 13
Series RJ Specific Product Precautions 1 Be sure to read this before handling. Refer to the back cover for Safety Instructions, “Handling Precautions for SMC Products” (M-E03-3) for Common Precautions. Selection Danger 1. Absorbed energy Select a model so that the aggregated energy of an impacting material should not exceed the maximum absorbed energy. Otherwise, it could cause changes in properties or result in damaging the shock absorber. 2.
PAGE 14
Series RJ Specific Product Precautions 2 Be sure to read this before handling. Refer to the back cover for Safety Instructions, “Handling Precautions for SMC Products” (M-E03-3) for Common Precautions. Mounting Warning Caution 1. Before performing installation, removal, or stroke adjustment, make sure to cut the power supply to the equipment and verify that the equipment has stopped. 2. Installation of protective cover 3.
PAGE 15
Series RJ Specific Product Precautions 3 Be sure to read this before handling. Refer to the back cover for Safety Instructions, “Handling Precautions for SMC Products” (M-E03-3) for Common Precautions. Mounting Storage Warning Caution 6. Adjust the stopping time by using a stopper nut. Control the stopping time of the impacting material by turning the stopper nut in or out (thus changing length “a”). After establishing the stopper nut position, use a hexagon nut to secure the stopper nut in place.
PAGE 16
Safety Instructions Caution: These safety instructions are intended to prevent hazardous situations and/or equipment damage. These instructions indicate the level of potential hazard with the labels of “Caution,” “Warning” or “Danger.” They are all important notes for safety and must be followed in addition to International Standards (ISO/IEC)∗1), and other safety regulations. Caution indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.