Mitsubishi Electric CR800 Series, Special Specifications Manual, Page: 54 / 156

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Shipping special specifications, options, and maintenance parts
２ Robot arm
(1) Bellows set
■ Order type: 1F-JS-21
■ Outline
By installing the bellows set at the tip of the shaft, scattering of the grease from the
shaft can be prevented. Also, the IP65 rating and the cleanliness of ISO class 5 or
better can be achieved.
■ Configuration
Table 2-13 ： Configuration equipment and types
■ Specification
Table 2-14 ： Specification
Part name Type Q’ty Mass (kg) Remarks
Bellows set 1F-JS-21 1 0.3 Factory option.
This option is corresponding to IP65 (direct jet flow
to the bellows section is not included) and ISO
class5.
Item
Specification
Standard specification
Bellows-installed specification
Note1)
Note1) Outside dimensions and operating range of a bellows-installed robot is shown in Page 28, "(2) Standard Specification
(With bellows)" .
IP protection rating IP20
IP65
Note2) Note3)
Note2) Direct jet flow to the bellows section is not included.
Note3) The conditions necessary to guarantee cleanliness are as follows: clean room down flow 0.3 m/s or greater and
installation of exhaust ducts. Two φ8 joints, A and B in the figure below, are prepared at the rear of the base to connect
the exhaust ducts. (To guarantee IP65, the connection of the exhaust ducts is also required.)
Prepare two 8-diameter hoses (about 2 m long). Connect each of the hoses to couplings A and B. At the opening of the
exhaust hose, intakes/exhausts of the air inside the robot arm occur due to the volume change of the bellows section
along with vertical movement of the Z axis. Arrange the position of the opening of the exhaust hose so that the
cleanliness of the robot will not be affected. Also, although only slightly, air flows from outside into the unit through the
opening of the exhaust hose. Consider the following two points for arranging the position of the opening of the exhaust
hose.
・ Arrange the hose with its opening facing downward.
・ The opening should not be located in the vicinity of dust/dirt or liquids, etc. (Recommended cleanliness of
surrounding area: ISO class 5 or better)
Cleanness -
ISO class 5
Note3)
Protection specification
General-purpose environment
Note4)
Note4) Applicable areas are worksites that require cleaning of the robot arm, for example for food processing (handling). The
bellows are not oil resistant. Do not use the bellows for machine tools, etc. in an oil mist environment. For the details of
IEC IP codes, refer to
Page 25, "2.2.7 Protection specifications" .
Waterproof environment
Note4)
Machine cable
Base
Exhaust duct
Opening
φ8 joint
A B