HayWHNKN®

Voltage:

AC220V/50-60Hz

Phase number:

Valve Stem Diameter:

0.14"-0.79"(3.5mm-20mm)

Valve Head Diameter:

0.47"-3.94"(12mm-100mm)

Valve Length:

2.76"-17.7"(70mm-450mm)

Grinding Angle Range:

10°-57°

Main Grinding Wheel Diameter:

7.87"(200mm)

Dish Wheel Diameter:

3.94"(100mm)

Main Grinding Wheel Width:

0.59"(15mm)

Spindle Motor Power:

1HP(750W)

Valve Drive Motor Power:

180W

Valve Feed Stroke:

Air Supply Pressure:

0.6MPa(6bar)

Coolant Tank Capacity:

1.06usgal(4L)

Well-Designed & Intuitive Control
The control panel boasts a logical layout with clearly grouped functions. All switches (Drive, Grinding Wheel, Oil Pump, Main Power) and indicator lights are centralized for one-touch operation. The easily accessible emergency stop switch ensures safety, while the dedicated cylinder clamp switch and variable speed control knob work in tandem to enable efficient valve clamping and precise speed adjustment, significantly boosting productivity.

Automated Centralized Lubrication
This system features an efficient centralized lubrication unit that automatically delivers oil from a main pump to four critical friction points. This ensures core moving parts like guide rails and lead screws are always optimally lubricated to minimize wear. It eliminates the need for tedious manual greasing, significantly extends the machine's service life, and guarantees consistent machining accuracy and reliability.
　

Flexible & Efficient Directed Cooling
The machine is equipped with an independent coolant pump and a magnetic-base, multi-directional spray pipe. This allows for 360-degree positioning to precisely direct coolant flow to the exact point of contact between the wheel and workpiece. This targeted design effectively prevents workpiece overheating (annealing), eliminates wheel clogging, significantly improves surface finish quality, and extends the grinding wheel's service life.

Versatile & Precision Grinding Station
This integrated station combines a dish-type grinding wheel, a precision graduated handwheel, and dedicated fixtures for a complete grinding solution. The dish wheel is designed for efficient valve face grinding. The high-precision handwheel allows for micron-level(20um) feed control to accurately manage material removal. Exclusive fixtures enable quick switching between valve tip grinding and chamfering without changing modules, significantly boosting precision and operational efficiency.

Rigid Precision Guidance System
The machine features two long, hardened and ground slide rails that form a highly rigid foundation. The two independent workpiece clamping cylinders mounted on them offer a long stroke and smooth operation, effectively suppressing machining vibrations. This dual-rail design ensures exceptional stability of the moving parts under heavy grinding loads, providing a solid guarantee for high-precision machining.

High-Precision Diamond Dressing Tool
The machine includes a professional diamond dresser that quickly and accurately restores the grinding wheel's profile and cutting sharpness. This key accessory prevents workpiece burns and inaccuracies caused by a dull wheel, guaranteeing the valve grinding ring always achieves the optimal geometry and surface finish. It is essential for maintaining consistent, high-quality results over the long term.

High-Precision Valve Tip Cone Grinding
The machine features a dedicated valve tip cone grinding setup, utilizing a precision adjustment handwheel to control grinding depth. Combined with the rigid dual slide rails and workpiece clamping cylinders, it ensures vibration-free operation during regrinding. This function quickly restores the standard geometry and sealing performance of the valve tip cone, enhancing engine valve sealing efficiency and preventing power loss caused by wear.

Ergonomic & Precision Feed Design
The grinding wheel feed handle features an ergonomic shape for comfortable grip and low-effort operation. Driven by a precision gear or lead screw mechanism, it enables smooth, micron-level fine feed of the wheel, effectively preventing impact or over-grinding during operation. This allows the operator to accurately control the grinding amount by hand, ensuring consistent processing results and a superior surface finish on valve faces.

Wide-Range Precision Angle Adjustment
Features a calibrated scale with a wide 10°-57° adjustment range, covering the valve angle specifications for the vast majority of global engine models. The precise graduations and a secure locking mechanism enable fast, accurate angle setting and repeatable positioning, eliminating the need for repeated calibration. This design significantly improves efficiency when switching between different valve types and ensures every valve is ground to the exact required face angle, guaranteeing optimal engine sealing performance.

You can make order with no worry.
Any concern just feel free to let us know, we'll reply in 24 hours in normal condition.
Handling Time: Shipping is usually made in 1-3 business days after payments cleared. Orders are processed from Monday-Friday; Not on the weekends & public holidays.
Warranty: 6 months' warranty for the machines, not for the consumables.
We stand behind our products all the item, so even if your warranty period has expired, you can still seek for service or technical support from us with low cost.