Datasheet

Component Parts
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
Description Material
Aluminum alloy
Aluminum alloy
Stainless steel
Carbon steel
Aluminum alloy
Aluminum alloy
Carbon tool steel
Oil-impregnated sintered alloy
Bearing alloy
Chromium molybdenum steel
Carbon steel
R: NBR
V: FKM
R: NBR
V: FKM
R: NBR
V: FKM
R: NBR
V: FKM
Note
Hard anodised
Chromated
ø20 to ø25
ø32 to ø100, Hard chrome plated
ø20 to ø32, Anodised
ø40 to ø100, Anodised
ø40 to ø100, Phosphate coated
ø20, ø25
ø32 to ø100
ø20 to ø32, Nickel plated
Nickel plated
Cylinder tube
Piston
Piston rod
Rod cover
Collar
Retaining ring
Bushing
Hexagon socket head cap screw
Rod end nut
Piston seal
Rod seal
Tube gasket
Rod scraper
Contents
Replacement Parts/Seal Kit
20
25
32
40
50
63
80
100
Bore size
(mm)
∗ R: NBR seal (Nitrile rubber) V: FKM seal (Fluororubber)
Kit no.
CQ2B20R-PS
CQ2B25R-PS
CQ2B32R-PS
CQ2B40R-PS
CQ2B50R-PS
CQ2B63R-PS
CQ2B80R-PS
CQ2B100R-PS
R: NBR
CQ2B20V-PS
CQ2B25V-PS
CQ2B32V-PS
CQ2B40V-PS
CQ2B50V-PS
CQ2B63V-PS
CQ2B80V-PS
CQ2B100V-PS
V: FKM
∗ Seal kit includes !0, !1, !2. Order the seal kit, based on each bore size.
∗ A rod scraper cannot be replaced independently. It is press-fitted, so replace
it not only with a rod cover and collar, but also with a rod cover assembly and
collar assembly. Contact SMC separately for how to order them.
∗ Since the seal kit does not include a grease pack, order it separately.
Grease pack part no.: GR-S-010 (10 g)
Construction
Standard (ø20 to ø32) Standard (ø40 to ø100) Rod end male thread
Caution
Caution
Retaining Ring Installation/Removal
1. For installation and removal, use an appropriate pair of pliers (tool
for installing a type C retaining ring).
2. Even if a proper plier (tool for installing a type C retaining ring) is
used, it is likely to inflict damage to a human body or peripheral
equipment, as a retaining ring may be flown out of the tip of a plier
(tool for installing a type C retaining ring). Be much careful with the
popping of a retaining ring. Besides, be certain that a retaining ring
is placed firmly into the groove of rod cover before supplying air at
the time of installment.
1. Before installing a cylinder, thoroughly flush out the piping to
prevent dust or cutting chips from entering the cylinder. For hydrau-
lic cylinders, use the air bleed valve to release the air inside the
cylinder.
2. Eccentric loads applied to the piston rod dramatically shorten the
service life. Use the piston rod by always applying a load in an axial
direction.
3. Make sure not to scratch or gouge the sliding portion of the piston
rod, as this could damage the seals and lead to leakage.
Handling Precautions
Caution
Handling Precautions
4. When the cylinder is exposed to dust or sand, or is used in a place
where liquid from the piston rod splashes, use the heavy-duty
scraper (-XC4) type.
5. If there is a possibility of liquid splashing on cylinder fittings when
using an air cylinder, use insert fittings, self-align fittings, steel
piping, etc. Consider the compatibility of liquid components and
piping materials before using.
6. When selecting seals, generally use NBR (nitrile rubber) seals with
liquids that do not contain chlorine and sulfur, and use FKM (fluoro
rubber) seals with liquids that contain chlorine and sulfur. However,
depending on the type and the brand of liquid (such as coolant
liquid) that splashes on the cylinder, the operating life of seals may
be reduced dramatically.
Examples of coolant liquid
Shimiron, PA-O-5 (Daido Chemical Industry Co., Ltd.) (NBR seals)
Noritake Cool, AFG-S (Noritake Co., Ltd.) (NBR seals)
Yushiroken, S-46S (Yushiro Chemical Industry Co., Ltd.) (NBR seals)
Yushiroken, EC-50-T3 (Yushiro Chemical Industry Co., Ltd.) (NBR seals)
Yushiron Oil, No. 23 (Yushiro Chemical Industry Co., Ltd.) (FKM seals)
Daphne Cut, Hs-1 (Idemitsu Kosan Co., Ltd.) (FKM seals)
Kits include items
!0, !1, !2 from
the table.
Series CQ2
181