The machine is suitable for cutting tool, spindle, tool holder, gear shafts and tempered transmission shafts and the workpiece requests high accuracy from cylindrical grinding. The quality of cylindrical grinding will depend on the centre hole circular geometrical accuracy.
The EUROPA JAINNHER JHV-1008CNC vertical grinding machine is designed for grinding of large components used in the transport, aerospace, power generation, oil & gas, hydraulic and precision components.
With a grinding internal diameter range from Ø50 to 800 mm, a maximum outside diameter of Ø1000 mm. The maximum height of the workpiece is 800mm, with a maximum worktable load of 1200 kg.
With a standard work capacity from 1mm to 50mm with a standard work rest, and 40mm to 100mm with a special workrest. A servo motor provides control of speeds from 10 to 250rpm and is used for the regulating wheel, which can be adjusted to ideal linear speeds. When the diameter of the regulating wheel changes the same linear speeds can still be maintained so as grind the best quality products
The largest in the Jainnher range, the JHC2412 150S boasts a 150mm grinding capacity with a special workrest. With a 30Hp, 610mm Dia grinding wheel by 305mm wide and a 305mm x 305mm regulating wheel, his machine weighs in at 7000Kg. A manufactured cast of high-grade FC-30 iron, melted by an advanced induction furnace, then cast in resin cores. In order to ensure stability and rigidity, they are heat-treated with normalizing procedure prior to machining. Precision ground Hydrostatic Bearings: Substantial decrease in heat deformation associated with Hydrodynamic bearings.Minimal friction, lateral displacement, and pressure. Extended tool life under heavy cut loads.
The smallest model from Jainnher featuring a 610mm dia grinding wheel, this model is equipped with 205mm wide wheel and offers grinding capacities from 2 to 60mm with a standard workrest or up to 150mm with a special workrest.
The CNC system has servo motor & ball screws in both axes. Consistent, automatic wheels dressing, suitable for precision fine tuning, accurate, automatic dimensional & servo feed system.
Comprehensive, automatic in – process feed units. It is easy to adjust through the CNC control system. Offered with FANUC controls with automation options including: Gantry, Robot, Bowl, Hopper handling systems
The popular JHC 18S provides grinding capacities from 1 to 50mm with a standard workrest or 40 – 100mm with a special workrest. As with other ‘S’ models, the regulating wheel is controlled by a servo motor resulting in variable speed from 10 – 250rpm.
The performance of all the EUROPA Jainnher machines is strictly inspected for roundness, straightness and surface roughness on standard work pieces. Hydrostatic bearings. Semi hydraulic float bearings. Regulating wheel drive. Spindle oil circulation. Slide device. Wheel dressing device.
With an increased wheel size over the JHC 18S, this machine has a 305mm wide grinding wheel on this model with a 455mm diameter allows for components to be ground from 1 to 50mm with a standard workrest and 40 to 100mm with a special workrest.
The advantages of centreless grinding, are not just for high volume production. Centreless grinding provides a fast turnaround for rounding of stock material and quite often, suits lower production runs. Tight tolerances easily achievable. All spindles fitted with precision ground Hydrostatic Bearings with a high pressure oil film for added precision under heavy
The next model up from the JHC 18S, this machine has a 255mm wide grinding wheel on this model with a 455mm diameter allows for components to be ground from 1 to 50mm with a standard workrest and 40 to 100mm with a special workrest. The EUROPA Jainnhers grinding wheel spindle runs on hydrostatic bearings with a high-pressure oil film for added precision under heavy loads A servo motor provides control of speeds from 10 to 250rpm and is used for the regulating wheel, which can be adjusted to ideal linear speeds. When the diameter of the regulating wheel changes the same linear speeds can still be maintained so as grind the best quality products
With a capacity from 1 to 25mm with a standard workrest or 25 to 40mm with a special workrest, and a servo controlled regulating wheel, the JHC 12S is the most compact centreless grinder in the range.
A precision ground, the hydrostatic bearing assembly provides minimal friction and lateral displacement, along with extended wheel life under heavy grinding loads. The grinding wheel spindle runs on the hydrostatic bearings with an ultra-thin oil film between all touching surfaces. This provides a substantial reduction in wear and prolongs spindle trueness and longevity. The regulating wheel uses a Variable Speed Motor, controls the speed of the regulating wheel.