Pagnoni SK Weldon End Mill Holders (DIN 6359)
Виробник: PAGNONI
Наявність: В наявностi
Pagnoni Weldon toolholders manufactured acc. to DIN 1835-B with SK taper (ISO 7388-1 / DIN 69871) are designed for rigid and reliable clamping of end mills with cylindrical shanks from 6 to 50 mm diameter.
- Anti-Rotation & Anti-Pullout: Clamping screw rigidly locks onto the Weldon shank flat, eliminating tool slippage or pullout during heavy-duty milling.
- High-Strength Body: Made of case-hardened alloy steel with a surface hardness of HRC 58 ± 2.
- Precision Taper: Taper manufacturing quality < AT3 ensures precise spindle seating and concentricity.
- Standard Balancing: Dynamically balanced to G 6.3 at 12,000 rpm for reliable operation on CNC milling machines.
Опис
Available Sizes and Part Numbers
| Part Number | Designation / Execution | Interface / Standard | Key Parameter |
|---|---|---|---|
| 130WLD06* | SK 30 / Weldon Ø 6 mm | ISO 7388-1 / Form AD | Gage length 45 mm, BD 25 mm, 1 screw |
| 130WLD08* | SK 30 / Weldon Ø 8 mm | ISO 7388-1 / Form AD | Gage length 45 mm, BD 28 mm, 1 screw |
| 130WLD12* | SK 30 / Weldon Ø 12 mm | ISO 7388-1 / Form AD | Gage length 50 mm, BD 42 mm, 1 screw |
| 130WLD16* | SK 30 / Weldon Ø 16 mm | ISO 7388-1 / Form AD | Gage length 70 mm, BD 48 mm, 1 screw |
| 140WLD06 | SK 40 / Weldon Ø 6 mm | ISO 7388-1 / Form AD/B | Gage length 50 mm, BD 25 mm, 1 screw |
| 140WLD10 | SK 40 / Weldon Ø 10 mm | ISO 7388-1 / Form AD/B | Gage length 63 mm, BD 35 mm, 1 screw |
| 140WLD16 | SK 40 / Weldon Ø 16 mm | ISO 7388-1 / Form AD/B | Gage length 63 mm, BD 48 mm, 1 screw |
| 140WLD20 | SK 40 / Weldon Ø 20 mm | ISO 7388-1 / Form AD/B | Gage length 63 mm, BD 52 mm, 1 screw |
| 140WLD25 | SK 40 / Weldon Ø 25 mm | ISO 7388-1 / Form AD/B | Gage length 100 mm, BD 63 mm, 2 screws |
| 140WLD32 | SK 40 / Weldon Ø 32 mm | ISO 7388-1 / Form AD/B | Gage length 100 mm, BD 72 mm, 2 screws |
| 150WLD06 | SK 50 / Weldon Ø 6 mm | ISO 7388-1 / Form AD/B | Gage length 63 mm, BD 25 mm, 1 screw |
| 150WLD16 | SK 50 / Weldon Ø 16 mm | ISO 7388-1 / Form AD/B | Gage length 63 mm, BD 48 mm, 1 screw |
| 150WLD25 | SK 50 / Weldon Ø 25 mm | ISO 7388-1 / Form AD/B | Gage length 80 mm, BD 65 mm, 2 screws |
| 150WLD40 | SK 50 / Weldon Ø 40 mm | ISO 7388-1 / Form AD/B | Gage length 120 mm, BD 80 mm, 2 screws |
| 150WLD50 | SK 50 / Weldon Ø 50 mm | ISO 7388-1 / Form AD/B | Gage length 120 mm, BD 100 mm, 2 screws |
Purpose and Application
Pagnoni WLD series Weldon toolholders are manufactured in Italy by Pagnoni Tools SRL for installation on CNC milling machines and machining centers with SK spindles according to ISO 7388-1 (formerly DIN 69871). The tooling is engineered for rigid clamping of end mills, drills, and cutting tools with cylindrical shanks featured with a side clamping flat per DIN 1835 Form B (Weldon). This series is optimized for heavy-duty, roughing, and semi-finishing milling operations with high stock removal rates.
Design and Features
Tool clamping is achieved via a screw locking perpendicularly onto the Weldon shank flat. This completely prevents tool rotation or pullout under heavy axial and radial forces. Starting from 25 mm diameter (Ø 25, 32, 40, 50 mm), Pagnoni holders feature two clamping screws. The holder body is made of case-hardened alloy steel surface hardened to HRC 58 ± 2 (case depth 0.4–0.5 mm). Threading and chamfering are performed post heat-treatment to preserve geometric stability. The body undergoes black oxide treatment (brunishing), while the taper is precision ground to quality < AT3 (DIN 7187 / DIN 2080). All holders undergo 100% final inspection and are dynamically balanced to G 6.3 at 12,000 rpm.
Compatibility
Tooling is designed for machine spindles with SK 30, SK 40, and SK 50 tapers (ISO 7388-1 / DIN 69871). Compatible with DIN 1835 Form B Weldon shank tools of corresponding clamping diameters (from 6 to 50 mm). Holder mounting in the spindle is secured using pull studs conforming to DIN 69872 (e.g., Pagnoni 930TIR01, 940TIR01, 950TIR01).
Selection Parameters
Selection is based on spindle taper (SK 30, SK 40, SK 50) and clamping diameter d (6, 8, 10, 12, 14, 16, 18, 20, 25, 32, 40, 50 mm). Gage length H (LPR) ranges from 45 mm to 120 mm. By coolant supply type, SK 30 execution is made in Form AD (central supply), while SK 40 and SK 50 executions feature combined Form AD/B (central or flange coolant supply).
Key Advantages:
- Absolute Anti-Pullout Protection: Locking screw rigidly secures the Weldon shank, eliminating tool slippage under high radial and axial loads.
- Taper Accuracy < AT3: Precision-ground taper ensures maximum contact area with the machine spindle.
- High Wear Resistance: Case-hardened steel with HRC 58 ± 2 hardness resists deformation under intensive operation.
- 100% Quality Inspection: Every Pagnoni holder undergoes complete geometric verification at the factory in Italy.
- Dual Clamping for Large Diameters: Executions from Ø 25 mm up feature two clamping screws for maximum torque transfer.
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Pagnoni SK Weldon End Mill Holders (DIN 6359)
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