The Kitagawa NV15 (model NV15C15) is a 3-jaw closed-center power chuck engineered specifically for vertical turret lathes (VTLs) and vertical turning applications. The closed-center design prevents chips, swarf, and coolant from entering the chuck mechanism — critical in vertical machining where gravity pulls contamination directly into the chuck body. Integrated wiper seals around the base jaw work with standard soft and hard top jaws; no special sealed jaws are required.

How does the NV15 compare to Kitagawa's standard N Series?

The NV Series (Vertical) differs from Kitagawa's N Series (standard closed-center) primarily in sealing and contamination management. The NV adds additional perimeter sealing around each base jaw and built-in wiper scrapers — the N Series shares the same fundamental closed-center architecture but without the enhanced vertical-orientation protection. Both series use the same 1.5 mm × 60° serration standard and accept standard HB/SB top jaw sets.

What hydraulic cylinder pairs with the NV15?

Kitagawa specifies the Y2035R (Y2035RE) hydraulic cylinder as the matched draw-tube actuator for the NV15. The cylinder delivers the 82 kN maximum draw bar pull force needed to achieve the full 247 kN static gripping force at the jaws. Maximum operating pressure is 3.2 MPa. The moment of inertia is approximately 2.58–2.7 kg·m².

What accessories are compatible?

The gripping range spans from a minimum of Ø72 mm to a maximum of Ø381 mm. Aftermarket equivalents from Chandox (CL-15DP series) offer compatible mounting dimensions for shops seeking alternative supply options.