POWER GRIP

The continuous zero-point clamping system for all machining processes with a single interface.

1. Modular and compatible

With various grid sizes of e.g. 160 mm, 200 mm and 320 mm, you can effortlessly implement all your technical requirements. With POWER GRIP your devices are no longer confined to individual machines. Once components have been mounted, they can easily be swapped in and out. POWER GRIP does not loose its zero-point even if you have to swiftly produce something else in the meantime.

2. Easy automation.

POWER GRIP adapts effortlessly to any manufacturing processes, including automated ones, and renders your assembly as flexible as you wish.

Machine Uptime

Up to 45% more efficiency

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Classic palletizing systems
Actual state
  • Uneconomic manufacturing
  • Non-optimized manufacturing processes
  • No standardization
  • High costs per unit
  • Excessive delivery times
  • Unfulfilled delivery dates
  • High error rate
  • Pricing pressure and competitive pressure
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POWER GRIP
Target state
  • Higher productivity and income
  • Optimized manufacturing processes
  • Standardized interfaces
  • Low unit costs
  • Reduced delivery times
  • Adherence to delivery dates
  • Low error rate
  • Competitive capacity
Back
Forward
Advantages

10 Advantages at a Glance

01.

Loading

The clamping system with an integrated self-protection mechanism.

With POWER GRIP you choose double integrated safety.

1. With a large pre-centering unit above the outlying ball cage, you can eliminate any damage to Z-reference surfaces.
2. The lifting function raises the pallets by about 2 mm. Thus Z-reference surfaces only come into contact with one another during the clamping process.

During the pallet loading process, a substantial lateral offset can be managed without any risk of damage to the sensitive Z-reference surfaces. This ensures precise handling and maintains the integrity of these critical contact points. A well-designed positioning aid significantly simplifies the loading process by ensuring accurate alignment and reducing the effort required for proper placement. The pallet is initially prepositioned to ensure accurate alignment. Thanks to the lifting function, the reference surfaces remain completely untouched at this stage, preventing any potential damage and ensuring precise positioning.

Pre-centering and Loading

Classic palletizing systems

POWER GRIP technology

Protruding chucking bolts
Result:
  • Possibility of Z-reference surface damage during pallet loading and unloading

No chucking bolts – large pre-centering
Result:
  • Z-reference surface damage avoidance during pallet loading and unloading

Usually no lifting function
Result:
  • During pallet loading, damage is pre-programmed, since the pallet collides with the Z-reference surfaces as soon as it is loaded.

Lifting function
Result:
  • Whilst the pallet is being loaded, the risk of damage is excluded since the pallet is lifted by 2 mm

Storage problem
Result:
  • Pallets with chucking bolts can easily loose their references when being parked.

No storage problem
Result:
  • Since there are no chucking bolts, there is no reference loss.

02.

Maintenance

Maintenance without zero point loss.

In contrast to other palletizing systems, all important wear parts of the POWER GRIP system are accessible from the outside. The system is easy to clean. Complete disassembly is unnecessary. The zero-point is not lost. This process only requires little time. With POWER GRIP, there is no risk of idle time due to dirt or abrasive wear.

Maintenance and Cleaning

Classic palletizing systems

POWER GRIP technology

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The internal chucking mechanism is inaccessible and therefore cannot be cleaned.
Result:
  • Higher investment of time and cost during servicing.
  • The dirt can lead to system blockages.
  • No process safety.

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The external chucking mechanism is easily accessible and can be cleaned at any time by the machine operator himself.
Result:
  • Reduced cleaning time and expenditure.
  • Maintenance „without zero-point loss“ within very little time.
  • High process safety.

03.

Accuracy

Back and forth without offset or hassle.

Accurately repeatable.

System accuracy.

With POWER GRIP you clamp your pallet on the same palletizing system with a repeatable accuracy of 0.002 mm. 750,000 times. Guaranteed.
With POWER GRIP you clamp your pallets for Focus on precision diverse machining operations, e.g. measuring, milling, EDM-ing to an accuracy of 0.005 mm

Accuracy

Classic palletizing systems

POWER GRIP technology

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Backlash
  • For classic palletizing systems, there is a certain amount of backlash between chucking bolts and reference holes due to manufacturing tolerances. It measures between 0,005 and 0,01 mm.

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Cone-shaped, spring-loaded alignment with planar support (HSK principle, hollow pole cone)
  • Four axial centering spring lugs guarantee tolerance-free centering

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04.

Thermal Expansion

Highest level of accuracy to secure compensation.

Conventional clamping systems

POWER GRIP Technology

Thermal variations cause the work piece zero-point to shift away from the system zero-point. This offset doubles when the machine table is turned by 180° (during 4- and 5-axis machining). Working precisely and repeatably becomes almost impossible.
POWER GRIP: thermal variations relate to clamping only towards the system zero-point. Even when the machine table is rotated, the system zero-point is maintained. Precise and repeatable work becomes standard procedure.

Positioning

Classic palletizing systems

POWER GRIP technology

No tolerance-free centering possible
  • Positioning only by reference and compensation bolts.
  • At least 3 kinds of chucking bolts are necessary: reference, compensation and chucking bolts, bolts for automation etc.
  • The abrasive wear of rigid clamping components can lead to increased abrasive wear and therefore backlash.

Centering absolutely free from backlash (HSK principle, hollow pole cone)
  • Centering is achieved across all centering sleeves.
  • Only one kind of centering and clamping sleeve.
  • Four axial centering spring lugs do not allow abrasive wear and therefore no backlash.

Chucking

Classic palletizing systems

POWER GRIP technology

Mechanically guided chucking mechanism
Result: Possible warping of the pallet
  • Thermal variations cause irregular engagement of ball pivots/slide feeds.

Floating clamping cone
Result: Pallet warping is impossible
  • Ball pivots engage equally during thermal variations.

Thermal expansion compensation

Classic palletizing systems

POWER GRIP technology

Compensation for thermal expansion by compensation bolts
Result: Zero-point displacement, warping and stability problems
  • Centering offset during 5-axis processing

Thermal expansion compensation due to four axial centering spring lugs
Result: No zero-point displacement or warping in the system
  • No centering offset during 5-axis processing

05.

Z-references

Long-lasting safe production.

POWER GRIP is always equipped with a Z-reference cleaning system. Z-reference surfaces are cleaned at every chucking process. This is important for high levels of accuracy, process safety and lifespan. The hardened and rust-proof POWER GRIP reference surfaces, both in the palletizing system and the PG pallets, make this system virtually non-wearing and readily automatable.

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Z-references

Classic palletizing systems

POWER GRIP technology

Standard: Soft Z-references on the pallet
Result: Wear and therefore inaccuracy
Standard: Hardened, rust-proof Z-references on the pallet and pallet carrier
Result: Long lifespan and consistent accuracy

Z-reference cleaning, Overpressure, Z-reference feedback

Classic palletizing systems

POWER GRIP technology

No standard Z-reference cleaning
Result: High levels of wear and therefore loss of precision
  • Overpressure not possible
  • Not automatable
  • Modification for automation is very costly/might be impossible

Permanent Z-reference cleaning
Result: Reduction of dirt, high process safety and best possible accuracy
  • Overpressure available
  • Z-reference feedback always possible for automation
  • Modification for automation practicable within a few minutes and without specialists

Z-references

Classic palletizing systems

POWER GRIP technology

Large-dimensioned Z-references
Result: Large-dimensioned Z-references are difficult to clean
Minimized, but hardened Z-references
Result: Minimized Z-references can easily be cleaned

In a released state, a continuous flow of air effectively cleans and protects the Z-references from dirt and contamination. This airflow ensures that any debris or particles are blown away, maintaining the integrity and cleanliness of the reference surfaces. As a result, the system is kept in optimal condition, which contributes to its overall performance and reliability.

06.

Process Safety / Automation

Automatic process safety.

By means of hardened, rust-proof reference surfaces, both on the pallet and the pallet carrier, as well as by the additional possibility of monitoring by Z-reference feedback, POWER GRIP can be automated at any time.

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Automation

Classic palletizing systems

POWER GRIP technology

No standard Z-reference feedback
Result: No process safety. Not suitable for automation. Available standard palletizing systems must be exchanged for automation.
Standard Z-reference feedback
Result: High level of process safety Ideally suited for automation.
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In a locked state, the airflow is interrupted, serving as a clear signal to the system that the pallet is securely clamped in place. This interruption indicates that the clamping process has been successfully completed, allowing production to commence. With the pallet firmly held, all machining operations can begin safely and efficiently, ensuring that the workpiece remains stable and accurately positioned throughout the production process.

The pallet of the classic clamping system normaly rests on the Z-references of the clamping module by it‘s own weight. Even if a chucking bolt is broken or does not exist any more the drill holes for the Z-reference feedback are still sealed. The pallet seems to be clamped mechanically but it isn‘t. The start signal for the beginning of processing can still be carried out. Tolerances during fabrication and variations in temperature cause additional problems. The positioning by conical chucking bolts can not be carried out exactly. Process safety does not really exist in the end.

POWER GRIP works different. The pallet does not contact the Z-references. Contact only takes place in the moment of clamping. The signal for „pallet clamped” only occurs if the centering spring lugs (7,5 KN each) are load-ed and the drilling holes of the Z-reference feedback are closed.

Z-reference feedback

Classic palletizing systems

POWER GRIP technology

Secutity gap in supervision concering pallet clamping is possible
Result: Risk of accident
Safe supervision of the clamping of the pallet
Result: High reliability during operation
07.

Material, Endurance, Clamping Force

POWER GRIP can be relied upon.

POWER GRIP is made of high quality materials. Each centering unit chucks automatically with a clamping force from 16,000 N up to 39,000 N. Even under high pressure, e.g. under high machining forces or during a machine crash, pallets cannot be ripped from the palletizing system.

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Material

Classic palletizing systems

POWER GRIP technology

Systems are not completely rust-proof
Result: High level of wear due to corrosion, shorter lifespan
The system is completely rust-proof
Result: Higher level of accuracy, longer lifespan

The pallet carrier consists of 1.2085 steel, centering units as well as centering and clamping sleeves are made of rust-proof steel

Releasing and Clamping

Classic palletizing systems

POWER GRIP technology

Additional pneumatic or hydraulic generator may be necessary
Result: Increased costs and space requirements
Only 6 bar compressed air required to release the system
Result: Hardly any auxiliary devices necessary
Designation
Releasing
Clamping Force*
Retentioning
Clamping Force*
POWER GRIP centering units (pneumatic)
6 bar
16.000 N
5 bar
31.000 N
POWER GRIP centering units (hydraulic)
30 bar
27.500 N
4 bar maximal
39.000 N
* Clamping force is the maximum force under which the pallet still safely lies on the Z-references of the palletizing system.
08.

Modularity and Consistency

Flexible response.

Due to POWER GRIP’s modularity, the palletizing system can be adapted to various work piece sizes as well as to existing and new machines. POWER GRIP can be used for a variety of manufacturing processes. These include: 3- or 5-axis milling, EDM-ing, Measuring, Grinding, Lasering & Turning.

The system can be expanded gradually at any time, as all POWER GRIP pallet carriers are fully compatible with one another. This allows for flexible scalability, enabling you to enhance your clamping capabilities without the need for complete system overhauls. Each additional pallet carrier integrates seamlessly into the existing setup, providing a straightforward and efficient way to adapt to changing production needs and requirements.
With POWER GRIP, it doesn’t matter which pallets you use with the existing centering units. This remarkable versatility allows you to utilize various pallets without compromising compatibility, ensuring a smooth workflow, enhanced efficiency, and flexibility in your production processes. You can easily interchange pallets as needed, making the system highly adaptable to different machining tasks, requirements, and operational demands.
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Modularity

Classic palletizing systems

POWER GRIP technology

Partly fixed system sizes
(e.g. 280×280 / 320×320)
Variable system sizes and grid sizes
(Pallet sizes from 125×125 to 2000×2000)

Consistency

Classic palletizing systems

POWER GRIP technology

Differing, often incompatible, systems for diverse machining operations
A single, ever-compatible system for all machining operations
09.

Investment and Gain

Sow and harvest.
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10.

Sample Applications

More than 2,500 solutions speak for themselves.

POWER GRIP 1-fold

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POWER GRIP 2-fold

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pdf

Download Brochure

Discover more details about POWER GRIP in our brochure. It provides comprehensive information on technical specifications, application possibilities, and the advantages of the system. Download the brochure now and learn how our system can optimize your manufacturing processes.
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