Режущие и зажимные инструменты Hoffmann Group 2026 - страница 1263

GBP 57 Rubber adapter mats for slit plates ​ Size 5 – High coefficient of friction and good plane parallelism of 2-3 hundredths. 38 5051 – Low coefficient of friction, permits face milling, for the best possible plane parallelism. 38 5050 Size 2–4 – Medium coefficient of friction, ideal for drilling through holes, unsuitable for face milling. 38 5050_2 Type 2 3 4 5 38 5050 Rubber mat / roll for slit plates eShop eShop eShop eShop 38L 38 5051 Elastomer rubber mat eShop eShop eShop – 38L Length mm 300 400 600 2000 38 5050_5 Width mm 200 300 400 400 Height mm 3 3 3 1 Version Mat Mat Mat Roll Sealing cord for grid plates ​ 38 5051 Application: ■ The neoprene sealing cord is laid in the suction groove of the grid plate, to limit the clamping area. on eters ■ The diameter of the sealing cord depends on the cross-section of the groove. t h e r diamest. O requ Length×⌀ (m×mm) 50×3 50×4 38 5060 38 5060 Sealing cord for grid plates eShop eShop 38L Vacuum clamping technology For vacuum clamping, a vacuum is produced under the workpiece to be clamped so that the workpiece is clamped to the clamping plate by the pressure differential. The surface structure, the size of the workpiece, and the pressure differential are crucial for the clamping force / movement resistance force of the workpiece. Vacuum clamping technology is suitable for milling, grinding, turning, inspecting, spark eroding, measuring, coating, laser cutting, polishing, drilling, deburring, engraving, and assembly. Advantages of vacuum clamping: ■ Clamping of pressure-sensitive workpieces, therefore no damage or distortion to the component. ■ Clamping of very thin sheets or films. ■ 5-face machining in a single clamping. ■ No vibration during machining. ■ Reduced clamping times due to quick clamp / quick release process (< 1 second). ■ Non-magnetic materials can be clamped. Patented Modular pitch Slit Grid plates/slit plates Vac-Mat system vacuum plates Vacuum plate Venturi system A wide spectrum of shapes of workpieces For heavy-duty machining of simple-shaped Clamping is achieved using rubber For clamping full-surface components. can be clamped. Thin soft re-usable workpieces with rough surfaces. adapter mats or covering films. Ensure the least possible “leakage air” plastic mats with elastic lips Sealing cords compensate minor surface These are placed between the workpiece entering the system on the upper face and fine holes irregularities and bulges. and the vacuum plate. Vacuum generation is easily performed using in the centre. the available compressed air. The integral High clamping forces, universal application, The mat is perforated to match the Venturi system requires an operating pressure High clamping forces, clamping faces with secure clamping of unmachined workpiece outline of the workpiece. of 3.5 – 6 bar. high coefficient of friction. Milling of surfaces, since the clamping face has a high external and internal contours can be coefficient of friction. The outstanding coefficient of As compressed air accelerates it creates performed, yielding precise and clean friction offers good resistance to the a suction effect (vacuum) within the nozzle. burr-free cut edges on the workpiece. movement forces that arise The final vacuum is a pressure of approx. during machining. 80 mbar (92% vacuum). The air consumption is 30 – 42 NL/min. Suction volume is approx. 96 l/min. The selection criterion for vacuum power units and pumps is the size of the clamping area: Clamping area < 0.12 m² < 0.15 m² < 0.5 m² < 1.0 m² < 2.0 m² < 3.0 m² Suction power 5 m³/h 10 m³/h 16 m³/h 21 m³/h 63 m³/h 100 m³/h Vacuum pump Vacuum pump Vacuum pump Vacuum pump Vacuum pump Vacuum pump Available systems for creating vacuum Vacuum power unit Vacuum power unit Vacuum power unit Water ring pump Vacuum power unit Water ring pump Vacuum power unit Water ring pump 38 Witte VAC-MAT Number of mats Required suction power 1 3 – 6 m³/h ≥8 16 – 21 m³/h ≥ 20 40 – 63 m³/h ≥ 50 100 – 160 m³/h 1263