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Zimmer GmbH 

 Im Salmenkopf 5 

 

 77866 Rheinau 

 Germany 

 

 +49 7844 9138 0 

●  

 +49 7844 9138 80 

 www.zimmer-group.com

INSTALLATION AND OPERATING INSTRUCTIONS:

Zero-point clamping system, pneumatic, SPN series

Installation and

Im Salmenkopf 5

operating 

instructions

77866 Rheinau

SPN series

Germany

DDOC00836

+49 7844 9138 0

Index c

[email protected]

EN 2021-12-09

www.zimmer-group.com

1.  Supporting documents

NOTICE

Read through the installation and operating instructions before installing or working with the product.

The installation and operating instructions contain important notes for your personal safety. They must be read 

and understood by all persons who work with or handle the product during any phase of the product lifetime. The 

documents listed below are available for download on our website 

www.zimmer-group.com

:

•  Catalogs, drawings, CAD data, performance data, technical data sheets

•  Information on accessories

•  Detailed installation and operating instructions

• 

General Terms and Conditions with specifications for the warranty entitlement

 

Ö

Only the documents currently available on the website are valid.

In these installation and operating instructions, "product" refers to the product designation.

2.  Safety notices

WARNING

Risk of injury during manual loading

Risk of injury due to parts moving independently after the power supply has failed or is switched off (including an 

emergency stop).

 

Do not reach into the product.

 

Do not reach between the clamping surfaces.

 

Wait for the system to come to a complete standstill.

Risk of injury due to parts moving independently after accidental or careless actuation of the "release actuation."

 

Do not insert a clamping pin into a clamped product.

 

Do not place a clamping pin onto a clamped product.

Risk of injury from parts flying and being flung

Various components of the product are continuously under spring tension.

•  Spring package

•  Cover

 

Do not loosen the screws of the cover.

 

Do not remove the cover.

 

Ö

Warranty and disclaimer

CAUTION

Injuries or malfunctions can occur, especially with:

•  Crushing during installation due to an unsecured mounting piece

•  Improperly assembled electrical connections

• 

Power supply faults, e.g. due to pressure fluctuations

•  Damaged or loose power lines

•  Missing or loose fastening screws

•  Failure to switch off the working medium during assembly or repair work on the product

•  Human error

•  Failure to observe the safety and warning notices during installation and commissioning

•  Failure to observe the safety regulations for operating the machine into which the product is to be installed

3.  Proper use

NOTICE

The product is only to be used in its original state with its original accessories, with no unauthorized changes and 

within the stipulated parameter limits and operating conditions. Any other or secondary use is deemed improper.

 

Operate the product only in compliance with the associated installation and operating instructions.

 

Operate the product only when it is in a technical condition that corresponds to the guaranteed parameters and 

operating conditions.

 

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Zimmer GmbH shall accept no liability for any damage caused by improper use. The operator bears sole respon-

sibility.

The product is used exclusively for positioning and clamping workpieces, clamping pallets or other clamping devices on tooling 

machines or other suitable technical equipment. The product is designed exclusively for pneumatic operation. Use compressed 

air in accordance with DIN ISO 8573-1 [4:4:4].

The product is designed for use in commercial or industrial applications.

For questions regarding use outside of the stipulated parameters, please contact Zimmer Customer Service.

Improper use occurs when the product is used in rotary applications without consulting Zimmer GmbH and the following 

parameters are exceeded:

•  Speed: 1500 rpm

•  Peripheral speed: 35 m/s, relative to the center axis of the product

4. 

Personnel qualification

Installation, commissioning and maintenance may only be performed by trained specialists. These persons must have read and 

understood the installation and operating instructions in full.

5.  Product description

5.1  Forces and torques

INFORMATION

For information on the forces and torques for the following product, please refer to our website 

www.zimmer-group.com

:

Please contact Zimmer Customer Service if you have any questions.

5.2  Type plate

There is a laser engraving in the housing of the product.

The laser engraving contains the article number 

dl

 and confirmation 

number 

dm

.

dl
dm

INFORMATION

Please state the confirmation number 

dm

 in the event of damage or a complaint.

Please contact Zimmer Customer Service if you have any questions.

5.3  Functional description

The pneumatically operated product is designed for clamping workpieces and workpiece-clamping devices with extremely high 

repeatability. Due to its structural design, the system is clamped without pneumatic pressure applied.

The clamping force can be significantly increased by using an additional impulse on the PLUS connection. The form-fit arrest 

cannot be released until the release connection is actuated, the clamp dog is pressurized and the PLUS connection is simulta

-

neously vented.

The product is optimally adapted to the clamping contour of the clamping pin. The resulting surface contact creates an 

extremely rigid system that can absorb high forces and torques. 

The basic version features two rotation prevention devices.

The blow-out or cleaning function prevents dirt or liquid from collecting in the pin holder and contact surface. When clamped, 

the seal on the contact surface prevents dirt or liquids from penetrating into the product.

Safe operation can be verified by the following statuses by means of piston position sensing and a positioning check:

•  Product opened

•  Product closed (clamping pin clamped)

•  Product closed (no clamping pin present)

•  Workpiece present (rests upon the contact surface)

All functions can be controlled directly by means of the contact surface and the standard connections with O-rings. There is also 

the option to control the product by means of alternative connections on the bottom of the product.

5.4  Product design

Pneumatic connections

6

Rotation prevention

1

Unlocking

7

Fastening screw of the product

2

PLUS connection

8

Standard: Tubeless connection

3

Blowing out/cleaning/positioning check

9

Alternatively: Hose connection

4

Sensing: Product opened

bl

Clamp segment

5

Sensing: Product closed

bm

Spring package

bn

Sealing support

bo

Borehole for position checking

bp

Pin opening

bq

Cover

6

6

bn

7

bp

bo

bq

bm

bl

2

3

5

4

1

9

8

Fig. 1: SPN series

Fig. 2: Cutaway view of the SPN series

Fig. 3: Pneumatic connections of the SPN 

series

6.  Accessories

NOTICE

Before installing an accessory, make sure it is suitable for use with the selected variant. For information on all 

available accessories, please visit our website.

Please contact Zimmer Customer Service if you have any questions.

7.  Technical data

INFORMATION

For technical data, please visit our website.

This data varies within the series, depending on the specific design. 

Please contact Zimmer Customer Service if you have any questions.

8.  Installation

WARNING

Risk of injury due to uncontrolled movement

Risk of injury in case of uncontrolled movement of the machine or system into which the product is to be installed.

 

Switch off the power supply of the machine before all work.

 

Secure the machine's power supply against being switched on unintentionally.

 

Check the machine for any residual energy that may be present.

Risk of injury in the event of uncontrolled movement of parts when the power supply is connected.

 

Switch off the power supply to the product before all work.

 

Secure the power supply against being switched on unintentionally.

 

Check the product for any residual energy that may be present.

NOTICE

 

Switch off the power supply before any assembly, installation or maintenance work.

The product must be mounted on a suitable mounting piece (made of steel).

 

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To install the product, please refer to the detailed installation plan on our website or contact Zimmer Customer Service.

•  Mount the product to the mounting piece from above using the installation holes.
•  Fastening screws 

7

 and cover caps 

cl

 are included in the scope of delivery (included loose).

•  Strength class of the 10.9 fastening screws (DIN EN ISO 4762)

•  Comply with the tightening torques of the mounting screws.

 

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Zimmer GmbH recommends verifying the permitted load-carrying capacity of the required screw connections in accordance 

with VDI 2230.

• 

You can find the exact installation positions in the technical datasheet on our website.

•  Check the product for possible transport damage before assembly.

•  Recommendation: As a principle, only use tested compressed air hoses.

•  Seal unused pneumatic connections.

8.1  Installing the mechanical system

The product is installed onto the mounting piece via the flange surface 

and the fastening screws 

7

.

The following work steps must be observed during installation:

 

Ö

If the PLUS connection 

2

 is not in use, insert a filter 

cm

 into the 

connection (filter included loose).

 

Ö

The filter 

cm

 must be flush with the bottom of the product during 

installation.

 

Insert the O-rings 

cp

.

 

Ö

Lubricate the O-rings.

 

Insert the product into the intended position on the mounting 

piece.

 

Ö

Make sure that the standard connections for the tubeless 

connection are positioned correctly.

 

Manually screw the fastening screws 

7

 into the thread until the 

product is in contact.

 

Ö

Insert the straight pin for the rotation prevention 

6

 if this is 

required!

 

Tighten the fastening screws 

7

 with the corresponding tightening 

torque.

 

Ö

The vent holes and filters have to be atmospherically vented over 

their entire cross-section and protected against liquids (e.g. oil, 

grease, etc.) and chips.

 

Attach the cover caps 

cl

.

cl

7

cm
2

cp

cp

cp

cp

3

5

4

1

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