Non rotating spring plungers Series NPM – NPR
These spring plungers are used in situations where significant height differences of the workpiece have to be compensated for.
Thread size M3, M5, G1/8, G1/4, plunger stroke length from 5 to 75 mm.
Thread size M3, M5, G1/8, G1/4, plunger stroke length from 5 to 75 mm.
The spring plungers are used in situations where significant height differences of the workpieces have to be compensated for.
The spring provides furthermore a gentle approach towards the workpiece without further complex controls in fully automated system, which is important when handling sensitive workpieces.
The spring provides furthermore a gentle approach towards the workpiece without further complex controls in fully automated system, which is important when handling sensitive workpieces.
Applications:
- Handling of parts with different heights (for example curved metal sheets)
- Handling of a very fragile parts (for example glass sheets), or parts with a delicate surface
General Data
| Description | Spring plunger consisting of a high-strength steel rod Guide sleeve Lower spring Threaded fitting (internal thread for suction pads until M5, otherwise external thread) |
Coding Example
| NPM | – | FM | – | 1/4 | – | 75 |
| NPM | SERIES NPM = spring plunger NPR = spring plunger – non-rotating |
| FM | THREAD VERSION FM = female/male FF = female/female |
| 1/4 | THREAD M3 = M3 M5 = M5 1/8 = G1/8 1/4 = G1/4 |
| 75 | COMPENSATION STROKE 05 = 5 mm 10 = 10 mm 15 = 15 mm 20 = 20 mm 25 = 25 mm 50 = 50 mm 75 = 75 mm |
RELATED PRODUCTS
Compact cylinders Series 31
Double and single-acting, double-acting non-rotating, magnetic
Ø 12, 16, 20, 25 mm
Ø 32, 40, 50, 63, 80, 100 mm UNITOP
The compact dimensions allow Series 31 single and double-acting magnetic cylinders to be installed within confined spaces.
These cylinders are suitable for use with feet, brackets.These cylinders are available in 10 different bore sizes from Ø12 to Ø100.
The guides are inserted in the external profile parallel to the sliding axis on three sides.
These guides are used to locate the switches that sense the piston position.
The construction design of these cylinders provides excellent axis stability.
They are available either with a male or female thread.
These cylinders can be supplied in W version for high temperatures (140°C).
This last version is not magnetic.
Cylinders with integrated guide Series QC
Double-acting, magnetic piston, guided
ø 20, 25, 32, 40, 50, 63 mm
These actuators, suitable for use in very limited space, are available in two versions.
- QCT version: with sintered bronze bushes, suitable when the side loads applied to the cylinder are high.
- QCB version: with linear ball bearings, suitable for high precision and fast cycling applications.
Hydrochecks Series 43
Bore ø 40 mm
Regulated thrust or return stroke
Skip-Stop function
Series 43 hydrocheck units are available with two different types of control: regulated outward movement and fast return; or fast outward movement and regulated return.
These hydrochecks come complete with an oil surge tank which ensures automatic equalisation.
Speed variation is obtained by means of an incorporated flow regulator designed to allow comprehensive and constant use.Upon request, they can be supplied with an incorporated stop valve or an acceleration valve or both.
To restore oil when the minimum level in the surge tank is reached, use the following oil and pump Mod. 43N-PMP:
hydraulic oil, class H, ISO symbol HG 46, viscosity 4.5 E. at 40°C.
Stainless steel cylinders Series 97
Single- and double-acting, cushioned, magnetic.
Ø 32, 40, 50, 63 mm
Series 97 stainless steel cylinders can be used in critical applications where a high level of corrosion resistance is required (for example: off-shore, naval, food industries).
These cylinders are normally equipped with end-stroke cushioning which can be adjusted through a screw on the end block.
In order to quieten the impact of the piston on the end block, these cylinders are also equipped with mechanical cushioning.
Stopper cylinders Series ST
Single and double-acting, magnetic, non-rotating
Sizes 20, 32, 40, 50 mm
The Series ST Stopper cylinders are pneumatic actuators with rod, complying with UNITOP and ISO 21287 standards, where rod and bushing have been specifically enlarged to ensure high resistance to radial loads and shocks.
These cylinders are available in two versions, double-acting and single-acting, and with rear spring.
The non-rotating rod version is also available.
The detection of the piston position is enabled by means of proximity switches (Mod. CST or CSH) which are mounted in slots along three sides of the cylinder profile.
It is possible to cover the slots with a proper profile (Mod. S-CST-500).
The high resistance to shocks and radial loads and the easy mounting makes Series ST particularly suitable for use in transport/conveyor lines where it is required to stop the transit of workpieces and workpiece-holder pallets.