Workpiece component holder 9-251-ESD

ESD ball joint base designed for secure, adjustable holding and quick-release clamping of instruments, cameras, sensors and other components in ESD-protected work areas. The base provides 360° rotation, infinitely variable locking and a dissipative surface coating suitable for EPA/ESD workplaces.

Key features

• Ball joint quick release for heavy parts, 360° rotatable, infinitely adjustable; quality product made in Germany
• For clamping to the workbench (max. table thickness 80 mm)
• Threaded pin M12 x 1.5 x 20 mm
• Support surface approx. Ø 20 mm
• Inclination angle ±45°
• Included: Schnorr washer and lock nut (lock nut for the thread)
• Cast aluminum with black ESD powder coating, dissipative 10^7 to 10^8 ohm
• Dimensions approx. 220 x 170 x 75 mm
• Weight approx. 940 g

Area of application
Ball joint holders are available in different ball diameters providing different holding forces. A small lever pressure enables stepless locking with high clamping force. Clamping variants include clamp-on base (for workbenches up to 80 mm thick), screw-on base (four 9 mm through holes) or high-performance magnets for rapid repositioning. Typical uses: alignment and holding of cameras, monitors, sensors or measuring instruments; instrument and model making; repair and maintenance of e-scooters/e-bikes/bicycles; laboratories, research centres and universities. Various adapters and extensions can be screwed onto the ball via the threaded pin.

Technical description
Connection thread: M12 x 1.5 mm (special thread). Example maximum torque: ball Ø 40 mm ≈ 24 Nm; ball Ø 60 mm ≈ 100 Nm. Example holding force at the height of the threaded pin: ball Ø 40 mm ≈ 45 kg (441 N); ball Ø 60 mm ≈ 140 kg (1,372 N). Clamping base suitable for table thickness up to 80 mm. ESD versions are dissipative (10^7 to 10^8 ohm) and EPA-compatible. Cast aluminium parts are powder coated; steel parts are chrome-plated and corrosion resistant. Ball friction can be adjusted from loose to very firm via the adjustment screw at the lower ball seat. For safety-relevant applications, actual holding forces depend on application conditions and may differ from laboratory figures.

General information
Product development is continuously working on optimisation and further development of these products.

Technical specifications

• Model / designation: 9-251-ESD
• Threaded pin: M12 x 1.5 x 20 mm
• Support surface: approx. Ø 20 mm
• Inclination angle: ±45°
• Clamping capacity (table thickness): max. 80 mm
• Materials and finish: cast aluminium (black ESD powder coating), chrome-plated steel parts
• ESD dissipation: approx. 10^7 to 10^8 ohm (dissipative)
• Dimensions (approx.): 220 x 170 x 75 mm
• Weight (approx.): 940 g
• Included in delivery: Schnorr washer and lock nut (lock nut for the thread)
• Holding force examples: ball Ø 40 mm ≈ 45 kg (441 N); ball Ø 60 mm ≈ 140 kg (1,372 N)
• Maximum torque examples: ball Ø 40 mm ≈ 24 Nm; ball Ø 60 mm ≈ 100 Nm