BEYOND VDI Serrated Locking Blocks DIN 69880 | VDI 30/40/50 Clamping Blocks

VDI Serrated Locking Blocks DIN 69880 Precision Clamping Components for CNC Tool Holders Brand: BEYOND | Origin: China | Standard: DIN 69880 / ISO 10889 ⚠️ TECHNICAL NOTE: Images are for display purposes. This product includes the Locking Block/Wedge only. "What is the function of a VDI Serrated Locking Block?" The BEYOND VDI Serrated Locking Block is a critical component for securing VDI tool holders within the CNC turret. Following the DIN 69880 standard, these blocks feature a precision-ground serrated surface that meshes perfectly with the tool holder shank. The S-type tightening mechanism ensures a high-clamping force, preventing axial movement and vibration during heavy-duty turning operations. Available for VDI sizes from 16 to 80, these blocks are essential for maintaining turret alignment and machining accuracy. "How to identify the correct VDI Locking Block size?" VDI Turret Interface 40 Shank Dia (mm) W Wedge Type 28 Wedge Width DIN Standard Spec "Why choose BEYOND Serrated Blocks over standard parts?" ✔ High-Tensile Steel: Manufactured from 20CrMnTi steel for maximum durability and resistance to thread stripping. ✔ Precision Ground Serrations: Ensures 100% surface contact with the tool holder shank to eliminate micro-vibrations. ✔ Anti-Corrosion Finish: Black oxide coating provides superior rust resistance in high-moisture coolant environments. "Full size range for DIN 69880 Locking Blocks" Series Model VDI Size Wedge Width (mm) Metric Equiv. Imperial Equiv. VDI16 / W-16 VDI 16 16 mm M16 ~0.63" VDI20 / W-18 VDI 20 18 mm M18 ~0.71" VDI30 / W-20 / W-22 / W-26 VDI 30 20 - 26 mm M20-M26 ~1.18" Shank VDI40 / W-28 / W-30 / W-40 VDI 40 28 - 40 mm M28-M40 ~1.57" Shank VDI50 / W-36 / W-50 / W-60 VDI 50 36 - 60 mm M36-M60 ~1.96" Shank VDI60 / W-42 VDI 60 42 mm M42 ~2.36" Shank VDI80 / W-50 VDI 80 50 mm M50 ~3.15" Shank Clamping Torque Recommendations VDI 30: 45 - 55 Nm VDI 40: 80 - 100 Nm VDI 50: 150 - 180 Nm Installation Tip Clean all serrations before installation. Lightly oil the thread and the wedge back-surface for smooth clamping action. MATCHING VDI TOOL HOLDERS HERE → "Where are these locking blocks used?" These are used exclusively on CNC Lathes equipped with VDI turrets. They serve as the mechanical interface that locks Static Holders (Turning, Boring, Facing) and Live Tool Holders into the turret disk. "Which turrets are they compatible with?" Fully compatible with all DIN 69880 / ISO 10889 standard turrets, including systems by Sauter, Duplomatic, Pragati, and major machine brands like Mazak, DMG Mori, and Haas (VDI versions). "Why professionals trust BEYOND VDI components?" Tool holder stability is the foundation of machining precision. At BEYOND, we specialize in technical CNC components. Our VDI locking blocks undergo rigorous hardness testing to ensure they won't deform under extreme industrial pressures. Global Verified Customer Feedback ⭐⭐⭐⭐⭐ "The VDI40 W-28 fits perfectly in our Sauter turret. Very strong." - Schmidt, Germany ⭐⭐⭐⭐⭐ "Exactly as described. Serrations are sharp and hold well." - Miller, USA ⭐⭐⭐⭐ "Good value for money. Harder than the cheap ones I used before." - Ricci, Italy ⭐⭐⭐⭐⭐ "Fast shipping to UK. Solved our tool holder vibration issues." - Thompson, UK Frequently Asked Questions Q: Can I use these for VDI holders without serrations? A: No. VDI tool holders must have the corresponding serrated shank for these blocks to function safely. Q: Is the tightening screw included? A: Yes, each locking block comes with the high-strength S-type clamping screw. Q: What happens if I over-torque the block? A: Over-torquing can lead to turret disk deformation or screw failure. Please follow our recommended torque settings. Locking Block Material Choice BEYOND Standard: 20CrMnTi Alloy Steel. Heat-treated for long life and thread integrity. Generic Brands: Often use standard carbon steel which wears down and loses clamping force over time. Keywords: VDI Serrated Locking Block, DIN 69880 Clamping Wedge, VDI 30 40 50 Tool Holder Lock, Sauter Turret Parts, CNC Lathe Spare Parts China. © BEYOND CNC Tools - Industrial Precision Engineering Solutions.