Hardinge Kellenberger H4000
Key Specifications
machine type
xy adjustment range
w axis travel
table usable area
table load
table t slots
Overview
The Hardinge Kellenberger H4000 is the largest coordinate grinding machine in the Kellenberger lineup, designed for precision jig grinding of large mold bases, die sets, and heavy industrial components. With an X/Y adjustment range of 1,300 x 800 mm, a usable table area of 1,440 x 860 mm, and a standard table load capacity of 800 kg (optional 1,500 kg), the H4000 handles workpieces that far exceed the capacity of the H2000.
The H4000 offers the same high-speed spindle options as the H2000: the 40HS motor covering 9,000 to 45,000 RPM, the 70HS motor spanning 9,000 to 70,000 RPM, and the optional air-driven T15 turbine reaching 150,000 RPM for ultra-fine bore finishing. The programmable C-axis planetary speed ranges from 5 to 350 RPM. The vertical W-axis provides 635 mm of travel, more than the H2000's 450 mm, enabling access to deeper features in tall workpieces.
The Z-axis oscillation system operates at frequencies up to 8 Hz with adjustable stroke lengths from 0.1 to 170 mm. The U-axis provides radial infeed from -3 to +47 mm for precise stock removal control during planetary grinding. Maximum conical grinding angle of 120 degrees enables grinding of tapered bores, both divergent and convergent. The H4000 can grind bores using planetary motion with cantilever plates for diameters exceeding standard capacity.
The H4000 runs on a Fanuc 30i-B control with ISO programming capability. The machine weighs 10,500 kg and requires a 3.0 x 5.2 m footprint. New H4000 machines price between $750,000 and $1,200,000. The machine competes with the Moore G28, Hauser S70, and Mitsui Seiki JBG-1400 in the large-format precision coordinate grinding segment. Specs sourced from Kellenberger published data.
Full Specifications
| Parameter | Value |
|---|---|
| Machine Type | CNC coordinate/jig grinder |
| Xy Adjustment Range | 1,300 x 800 mm (51.2 x 31.5 in) |
| W Axis Travel | 635 mm (25.0 in) |
| Table Usable Area | 1,440 x 860 mm (56.7 x 33.9 in) |
| Table Load | 800 kg (1,764 lb), optional 1,500 kg (3,307 lb) |
| Table T Slots | 7, 14 mm |
| Conical Grinding Angle | 120 degrees |
| U Axis Radial Infeed | -3 to +47 mm |
| C Axis Planetary Speed | 5 - 350 RPM (programmable) |
| Spindle 40hs | 9,000 - 45,000 RPM |
| Spindle 70hs | 9,000 - 70,000 RPM |
| Spindle T15 Turbine | Up to 150,000 RPM (optional) |
| Z Oscillation Frequency | Up to 8 Hz |
| Z Oscillation Stroke | 0.1 - 170 mm |
| Z Feed Rate | 0.5 - 22,000 mm/min |
| CNC Control | Fanuc 30i-B |
| Machine Weight | 10,500 kg (23,149 lb) |
| Floor Space Required | 3.0 x 5.2 m |
Specifications sourced from kellenberger.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 1,300 x 800 mm X/Y range handles large mold bases and die sets that exceed the capacity of the H2000
- 1,500 kg optional table load supports heavy steel mold bases and die blocks without weight restrictions
- 635 mm W-axis travel provides deep reach for grinding bores in tall workpieces and deep cavities
- 150,000 RPM air turbine option enables ultra-fine finishing capability on the largest Kellenberger jig grinder
- U-axis radial infeed provides precise stock removal control independent of X/Y positioning
- 120-degree conical grinding capability handles both divergent and convergent tapered bores
Limitations
- Price range of $750,000-$1,200,000 represents a substantial capital investment limited to shops with consistent large-format jig grinding needs
- 10,500 kg weight and 3.0 x 5.2 m footprint require reinforced foundations and dedicated floor space
- Coordinate grinding at this scale requires the most experienced operators in the precision grinding trade
- Lead times for the H4000 are typically long as these machines are built to order with custom configurations
Best For
Frequently Asked Questions
01
New Kellenberger H4000 machines price between $750,000 and $1,200,000 depending on spindle options, table load capacity, rotary table, gauging, and automation. Base configurations with 40HS spindle and standard 800 kg table start near $750,000. Full configurations with 70HS and T15 spindles, 1,500 kg table, rotary table, in-process gauging, and automation approach $1,200,000.
02
The H4000 is the large-format version with 1,300 x 800 mm vs 550 x 300 mm X/Y range, 1,440 x 860 mm vs 650 x 400 mm table, 800/1,500 kg vs 300 kg table load, and 635 mm vs 450 mm W-axis travel. The H2000 weighs 12,500 kg vs the H4000's 10,500 kg due to its more compact, denser structure. Choose the H4000 for large mold bases; choose the H2000 for medium-size precision components.
03
The H4000 is designed for large mold bases (automotive bumper molds, dashboard molds), large die sets (progressive stamping dies, transfer dies), aerospace jig plates and assembly fixtures, and heavy hydraulic manifold blocks. These workpieces combine large size, heavy weight, and precision bore pattern requirements that cannot be met by smaller coordinate grinders.
04
The U-axis provides radial infeed during planetary grinding, controlling the depth of cut independently from the X/Y table position. With a range of -3 to +47 mm, the U-axis enables precise stock removal in increments while the grinding wheel orbits inside the bore. This is essential for controlling bore geometry, surface finish, and thermal effects during precision coordinate grinding.
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