Junker QUICKPOINT 3000
Key Specifications
Grinding Process
Max Grinding Length (between centers)
Max Workpiece Diameter
Center Height
Grinding Wheel Width
Grinding Wheel Diameter
Overview
The Junker QUICKPOINT 3000 is a CNC peel grinding machine implementing Junker's patented QUICKPOINT single-point external cylindrical grinding process. Unlike conventional cylindrical grinding where a wide wheel contacts the workpiece along its full face, QUICKPOINT uses a narrow CBN wheel (typically 3–5 mm wide) tilted at a small angle to the workpiece axis and traversed at high feed rates — analogous to turning, but with a superabrasive grinding wheel. This approach fundamentally changes the economics of shaft and pin grinding.
The QUICKPOINT process was developed by Junker in the early 1990s and has since been adopted widely in automotive manufacturing for crankshaft pin grinding, camshaft journal grinding, transmission shaft production, and similar applications. The key advantages are dramatic reduction in wheel inventory (one narrow wheel replaces dozens of profile wheels), faster diameter changes via NC programming rather than wheel changes, and excellent surface finish achievable at high production rates.
The QUICKPOINT 3000 is the mid-range model in Junker's QUICKPOINT lineup, designed for workpieces up to 500 mm in length between centers and 200 mm in diameter. The machine's high-speed CBN spindle achieves wheel surface speeds up to 120 m/s, and the B-axis tilt (the defining QUICKPOINT axis) is CNC-controlled for automatic adjustment between operations. The machine can grind multiple diameters, shoulders, tapers, and radii in a single setup from bar stock or between centers.
Automotive Tier 1 and OEM production is the dominant market, but the QUICKPOINT 3000 is also used in aerospace shaft production, fluid power component manufacturing, and precision instrument shaft grinding where high-volume consistent quality is required.
Full Specifications
| Parameter | Value |
|---|---|
| Grinding Process | QUICKPOINT single-point peel grinding (CBN narrow wheel) |
| Max Grinding Length (Between Centers) | 500 mm |
| Max Workpiece Diameter | 200 mm |
| Center Height | 175 mm |
| Grinding Wheel Width | 3 – 5 mm (narrow CBN wheel) |
| Grinding Wheel Diameter | Up to 400 mm |
| Wheel Surface Speed | Up to 120 m/s (high-speed CBN) |
| B-Axis (Wheel Tilt) Range | CNC controlled, ±30° |
| Workhead Speed (C-Axis) | Up to 1,500 RPM |
| Longitudinal (Z) Axis Feed Rate | Up to 10,000 mm/min |
| Achievable Roundness | < 0.5 µm |
| Achievable Surface Roughness | Ra < 0.2 µm |
| Diameter Changeover | NC-programmed (no wheel change required) |
| Control System | FANUC 31i + Junker JUPITER HMI |
| Machine Weight | Approx. 6,500 kg |
| Modelquickpoint 3000 Blankbrandjunkertypetool Cutter Grinderscontrolcontact Sales Rep | Contact Sales Rep. |
| Modelquickpoint 3000 Blankbrandjunkertypetool Cutter Grinderscontrol | Contact Sales Rep. |
| Model | QUICKPOINT 3000 BLANK |
| Brand | JUNKER |
| Type | Tool & Cutter Grinders |
| Axis3centers15748power322 Hp | Grinding Wheel Dia.13.78"ControlCNC |
| Axis | 3 |
| Centers | 15.748" |
| Power | 32.2 hp |
| Grinding Wheel Dia1378 | ControlCNC |
| Grinding Wheel Dia | 13.78" |
| Cnc Control | CNC |
| Looking To Purchase A New Junker Quickpoint 3000 Blank | Contact Sales Rep. |
Specifications sourced from machinetools.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Single narrow CBN wheel handles all diameters, tapers, and shoulders — eliminates wheel inventory and wheel change downtime
- Dramatically faster diameter changeover via NC program edit versus conventional wheel change setup
- High-speed CBN at 120 m/s enables excellent surface finish at production traverse rates
- Flexible multi-geometry grinding in one setup from bar stock reduces part handling
- Proven in automotive crankshaft, camshaft, and transmission shaft production worldwide
Limitations
- QUICKPOINT process is less suited for wide flat grinding operations — not a general-purpose cylindrical grinder
- CBN narrow wheel requires careful dressing management to maintain point geometry
- High initial investment in machine and CBN wheel system compared to conventional grinders
Best For
Frequently Asked Questions
01
In conventional cylindrical grinding, the grinding wheel contacts the workpiece across its full face width. QUICKPOINT uses a narrow CBN wheel (3–5 mm wide) tilted at a slight angle and traversed along the workpiece at high feed rates — similar in concept to turning. This means one wheel can grind any diameter or profile on the part, whereas conventional grinding requires a specific wheel for each diameter. The result is much faster setup changes and far less wheel inventory.
02
The QUICKPOINT 3000 can grind cylindrical diameters, tapers, radii, undercuts, and shoulders — essentially any turned geometry — all with the same narrow CBN wheel. The B-axis tilt angle and Z-axis traverse feed rate are adjusted in the NC program to optimize cutting conditions for each element of the part geometry.
03
CBN wheels last significantly longer than conventional abrasive wheels — often 100x longer for hardened steel applications. Because QUICKPOINT uses a narrow wheel traversing at high speed, the contact time per unit of wheel surface is very short, further extending effective wheel life. In automotive production, a single CBN QUICKPOINT wheel can grind thousands of shafts between dresses.
04
Yes. While automotive is the dominant market, the QUICKPOINT 3000 is also used in aerospace for turbine shaft pin grinding, in fluid power for hydraulic cylinder rod grinding, and in precision instrument manufacturing for spindle shaft production. Any application involving families of cylindrical shafts with varying diameters benefits from QUICKPOINT's flexibility.
05
The JUMAT 5000 is a universal cylindrical grinder using conventional or wide CBN wheels and is better suited for high-accuracy single-component grinding across diverse applications. The QUICKPOINT 3000 is optimized for high-throughput shaft family production where rapid changeover between diameters and minimal wheel inventory are priorities. For mass automotive shaft production, QUICKPOINT typically wins on cycle time and flexibility; for precision individual components, JUMAT may be preferred.
Videos
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JUNKER Group
JUNKER Group
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