Mechanical Characteristics; Important Recommendations - Numatics 450 Serie Manual Del Usuario

453/450 CYLINDER + DYNAMIC ROD-LOCKING DEVICE
GENERAL SPECIFICATIONS
ASSEMBLY : Rod lock device incorporated into cylinder, fi tted in line, centered on the piston rod (cylinder
without front bushing).
CYLINDER
CYLINDER TYPE : Series 453 or 450 cylinder conforming to ISO 15552 standards, aluminium barrel, pneuma-
tically adjustable cushioning, designed for Reed switches, magneto-resistive or magneto-in-
ductive position detectors.
CYLINDER BORE DIAMETERS : Ø 40-50-63-80-100 mm.
STANDARD CYLINDER STROKES : 50 to 600 mm (or more, contact us).
AMBIENT TEMPERATURE : -20°C to +70°C
FITTING POSITION : Any, see assembly recommendations below.
MOUNTINGS : All standard mountings for PES cylinders.
Centre trunnion (consult us).
ROD LOCK DEVICE
FLUID : Air or neutral gas, fi ltered, lubricated or unlubricated
DISENGAGE PRESSURE : 4 bar (min.), 8 bar (max.)
MAX. SYSTEM PRESSURE : 10 bar
AMBIENT TEMPERATURE : -5°C, +70°C
MOUNTING POSITION : Optional, see following pages for assembly recommendations .

MECHANICAL CHARACTERISTICS

HOLDING FORCE (static) Ø 40 mm : 1000 N
Ø 50 mm : 1600 N
LOCKING CAPACITY : Maximum load, in kg, that can be stopped dynamically over a distance of 50 mm in relation
to the rate of speed of the rod (the cylinder must be in a vertical mounting position).
V(mm/s) Ø 40
500 80
200 90
MAX. ALLOWABLE SPEED : 500 mm/s
6
NUMBER OF CYCLES : 1.5 x 10 (at 20° C, at a balanced stop, in hold function, cycle = 1 Hz )
CHOICE OF EQUIPMENT
■ 453/450:
ROD-LOCKING DEVICE ALONE
15-DIGIT PRODUCT CODE
G 492 A
Product series
492 = Rod-locking device
Diameter (mm)
4 = 40
5 = 50
6 = 63
8 = 80
1 = 100
3835198
Ø 63 mm : 2500 N Ø 100 mm : 6300 N
Ø 80 mm : 4000 N
Ø 50 Ø 63 Ø 80 Ø 100
130 200 320 500
145 225 360 590
- 1 1 0000 A00
Accessory subtype
1 = Dynamic
Cylinder type
1 = Metric cylinders
8
453/450 CYLINDER + DYNAMIC ROD-LOCKING DEVICE
MECHANICAL CHARACTERISTICS
Ø rod (mm) 16
Holding
HOLDING FORCE (static) : 1000 1600 2500 4000 6300
force (N)
Speed : 0.5
80
RESTRAINING CAPACITY :
(m/s)
0.2
90
Max. load (kg) that can be stopped dynamically over a distance of 50 mm in
relation to the rate of speed of the rod (the rod must be in vertical position).
RATE OF SPEED OF THE ROD : max. 0.5 m/s
ROD CHARACTERISTICS : see below

IMPORTANT RECOMMENDATIONS

- The rod must have the following characteristics:
• Dimensional tolerance: h9
• Hard-chrome plating or hard coating
• R • 600 N/mm 2 and Rt = 5 µm
• There must not be any sharp edges
PUTTING INTO SERVICE - MAINTENANCE
- Before installing the rod-locking device, it must be pressurised (min. 4 bar, max. 8 bar) to release it. Introduce the rod into the
locking device, taking the following precautions:
• There must not be any sharp edges on the rod
• The rod must be perfectly aligned with the centreline of the locking device
• There must be no point of resistance
- Before fastening the rod-locking device on its mounting support, depressurise the locking device so that it can be centered
correctly on the rod.
- The rod locking device is fi tted with 2 wiper seals made of PUR. It is recommended to grease the rod lightly at regular intervals
with a non-detergent class ISO VG 32 oil without aggressive additives (commonly used in pneumatic circuits). Do not let the
rod come into contact with any other oils or products which might damage the wiper seals made of PUR.
- It is recommended to check the correct operation of the rod-locking device at regular intervals.
MOUNTING AND OPERATING RECOMMENDATIONS
Precautions should be taken when installing a cylinder fi tted with a rod-locking device. It is important to clearly defi ne the type of layout
that is required and the operating conditions of the cylinder.
The cylinder must be locked only in case of need in the event of an emergency shutdown or a situation such as:
- failure in electric supply;
- failure in pneumatic supply;
- drop in pressure.
The rod locking device can, however, be activated in every cycle as soon as the cylinder has come to a stop (hold function).
The cylinder may be fi tted horizontally or vertically, with the rod either upward or downward. It may also be tilted, with the rod either
upward or downward.
A specifi c layout corresponds to each application. The specimen layouts on the opposite page show the principles to be observed and
the stops caused by interruption of the power supply or removal of the pressure by means of electropneumatic valves.
In the case of a vertical movement of the load, the force on the piston which is generated by pressure - and which operates in the
same direction as the load - must not exceed the locking capacity of the device when it is combined to the force of the load (see table
on preceding page).
The rate of speed of the rod must be less than 500 mm/sec.
After any emergency locking operation, make sure that the chambers of the cylinder are fi lled before the signal to unlock the device
is given.
The rod-locking device is fi tted with 2 wiper seals made of PUR. It is recommended to grease the rod lightly at regular intervals with
a non-detergent class ISO VG 32 oil without aggressive additives (commonly used in pneumatic circuits). Do not let the rod come
into contact with any other oils or products which might damage the wiper seals made of PUR.
It is recommended to check the correct operation of the rod-locking devices at regular intervals.
Note: Position control for rod-locking device on request : consult us.
PNEUMATIC CHARACTERISTICS
FLUID : Air or neutral gas,
20 20 25 25
fi ltered, lubricated or not
LOCKING SIGNAL
Min. pressure : 4 bar
130 200 320 500 Max. pressure : 8 bar
MAX SUPPLY PRESSURE FOR
145 225 360 590
ROD LOCKING DEVICE : 8 bar
- The rod-locking device must be centered on Ø S1 or S2
9 3835198