18mm Pneumatic Push Rod Clamp, 4.5kN Thrust, 8.8kN Holding Force, Zinc-Plated Cast Body - Kukamet

Take advantage of robust clamping performance and durable construction for consistent cycle times and secure fixturing. With a compact piston design and simple horizontal mounting, the unit supports efficient integration into pneumatic supply systems. Order the clamp via Metav Werkzeuge or contact our consultants for installation details.

Pneumatic Push-rod Clamp 641 — Horizontal foot, 4,500 N push force (Kukamet)

A compact Pneumatic Push-rod Clamp 641 designed for reliable workholding in machining, assembly and fixture applications across industrial workshops.

• High push force 4,500 N
• High holding force 8,800 N
• Galvanised cast body, robust construction

Consistent clamping force for stable production

The clamp delivers a repeatable push force of 4,500 N and a holding force of 8,800 N, ensuring components remain immobile during machining and handling. These rated forces translate into fewer rejects and less rework because the fixture sustains loads without micro-movement; the distinction between push and holding forces is crucial for process planners and fixture designers. The specified values are engineering-grade indicators of performance and can be used to calculate safety factors and cycle loads for automated systems.

Built for workshop resilience and precise mounting

Constructed with a galvanised finish and a cast body, the unit resists corrosion while offering the rigidity needed for accurate clamping. The compact mass of 2.57 kg balances stability with easy handling during fixture assembly. A horizontal foot mounting arrangement simplifies attachment to tooling plates and allows predictable force vectors, which reduces setup time and alignment iterations. Galvanisation protects cast surfaces from routine environmental effects and reduces the need for frequent part replacement, supporting longer mean time between service operations.

Pneumatic efficiency and compact actuation

Actuation is pneumatic with a piston diameter of 18 mm, providing quick response and low inertia for short cycle times. The smaller piston size permits compact installation while still delivering substantial force, making the clamp appropriate for confined fixtures or multi-station jigs. Integration with standard compressed-air supplies is straightforward; pressure and flow requirements can be calculated from the piston diameter and required cycle rate. The mechanical simplicity of a push‑rod design also reduces potential failure modes compared with more complex actuators.

Supply reliability and proven sourcing for industrial buyers

Sourcing through an established partner adds operational value: Metav combines extensive product availability with industry-grade logistics, supporting just-in-time requirements and bulk procurement. The clamp’s specifications and material finish make it suitable for continuous production environments where repeatability and durability matter. Choosing a recognised supplier reduces procurement risk and ensures access to compatible components, spare parts and documentation, reinforcing compliance with internal quality standards.

Contact Metav Werkzeuge to discuss incorporating the Kukamet pneumatic push-rod clamp 641 into existing fixtures or to request technical integration advice from our specialists

Technical data

• SKU: 641-4-Q18
• GTIN: 8680731503067
• eClass: 21041716
• ETIM: EC011973

Facts

• Maximum push force: 4,500 N
• Maximum holding force: 8,800 N
• Piston diameter: 18 mm
• Weight: 2.57 kg

Special features

• Pneumatic actuation
• Horizontal foot mounting
• Galvanised finish
• Cast body construction
• Category: Clamping device
• Manufacturer: Kukamet

FAQ

What is the maximum clamping force of this clamp?
The clamp provides a maximum push force of 4,500 N and a holding force of 8,800 N, as specified for the Kukamet Pneumatic Push-rod Clamp 641 (SKU 641-4-Q18).

Can the clamp be mounted on standard tooling plates?
Yes, the horizontal foot mounting is designed for attachment to common tooling plates and fixture bases, enabling straightforward integration into jigs and assemblies.

Is the finish suitable for humid workshop environments?
The galvanised surface and cast body offer improved corrosion resistance, making the unit suitable for typical workshop conditions where occasional moisture or coolant exposure occurs.

What pneumatic connection and performance can be expected from the piston diameter?
With a piston diameter of 18 mm, the clamp requires standard compressed-air supply parameters; this compact actuator achieves quick response times while providing the rated clamping force for efficient cycle rates.

Does the clamp support heavy-duty production use?
The combination of a cast body, galvanised finish and the specified holding force makes the clamp appropriate for continuous production and repeatable machining tasks where long-term stability is required.

Manufacturer: Kukamet Fevzi Çakmak Mah.10644 Sk. No:61-63 42050 Karatay / KONYA TÜRKİYE / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; +49 2822 7131930; eMail: info@metav-werkzeuge.com