What to Look for When Buying a Used Heller
Verify the spindle and ballscrew condition. Heller builds its own spindles at Nürtingen, with HSK-A63 and HSK-A100 tool interfaces matched to each series. Test spindle runout, listen for bearing noise, and check thermal stability after warm-up. If KGT-Analysis ballscrew data or IPM logs are available, review them for trend history. Ballscrew wear is a key indicator on high-hour machines because the platform is designed for heavy, continuous cutting.
Inspect the trunnion, swiveling head, and tool magazine. On HF-series 5-axis machines, verify the 225-degree trunnion swivel, direct-drive rotary axes, and YRT bearings for smooth motion and accurate indexing. On F-series machines, cycle the swiveling spindle head through its full range. Verify the tool magazine (chain type up to 240 pockets or rack type up to 405 positions) cycles cleanly. On machines with pallet changers, confirm clamping, alignment, and cycle time.
Check the Siemens control, HELLER4Industry, and automation. Heller machines run Siemens Sinumerik 840D sl with the HELLER4Operation interface. Confirm control state, option packages, and any HELLER4Services or HELLER4Performance modules. On C-series mill-turn machines, verify turning mode, C-axis, and live tooling. On older machines, confirm control version and that spare parts remain available from Heller Machine Tools in Troy, Michigan.
Heller H-Series 4-Axis Horizontal Machining Centers
H 2000, H 4000, H 5000 & H 6000 (4th Generation)
The H-series is Heller's configurable 4-axis horizontal machining center platform for high productivity from single-part to large-series production. The H 2000 is the compact entry, the H 4000 and H 5000 cover mid-range work, and the H 6000 handles large workpieces. The 4th generation offers Industry 4.0 features, modular configuration, and high load capacity. H-series machines are among the most commonly traded Heller platforms on the used market.
Heller 5-Axis Machining Centers
HF 3500 & HF 5500 (5th Axis in Workpiece)
The HF-series (2nd generation) places the 5th axis in the workpiece via a trunnion with 225-degree swivel and direct-drive rotary axes with YRT bearings. The HF 3500 Gen2 offers a 710 by 750 by 710 mm working volume, and the larger HF 5500 extends capacity. Available in POWER, SPEED, and PRO variants (PRO delivers 10 m/s² acceleration, optimized for simultaneous 5-axis), with fixed table or automatic pallet changer and rapids to 90 m/min.
F 3000, F 5000 & F 6000 (5th Axis in Tool)
The F-series places the 5th axis in the tool via a swiveling spindle head for high-performance 5-sided and simultaneous 5-axis machining. Available with and without pallet changer, the F-series targets aerospace, energy, and die-and-mold applications where complex geometry access from the spindle side is critical.
Heller Mill-Turn, Large-Format & Crankshaft/Camshaft
C-Series Mill-Turn (C 22, C 32, C 42)
The C-series delivers 5-axis combined milling and turning on a single machine for complete machining of complex components in one clamping, targeting shops that need to consolidate multiple setups into a single high-precision platform.
WV 8000, WH 10000 & Crankshaft/Camshaft Systems
The WV 8000 is a 5-axis vertical for structural components with high agility and free chip fall. The WH 10000 is a 5-axis horizontal for large aluminum castings with parallel machining from two sides. Heller crankshaft and camshaft systems (RFK, DRZ, MCC 15, RFN series) deliver flexible complete machining as standalone machines or linked systems, and patented CBC modules provide cylinder bore coating.
How to Sell Your Used Heller
Heller machines hold strong resale value due to 130 years of German engineering heritage, the popularity of H-series and HF-series horizontals in automotive and aerospace, and ongoing OEM support through Heller Machine Tools in Troy, Michigan. Low-hour H 4000, H 5000, HF 3500, HF 5500, and F 5000 with current Siemens controls are in high demand.
Resell CNC buys used Heller machines, every model and generation, nationwide.
- Contact us at (844) 478-8181 or sales@resellcnc.com.
- Free appraisal within 24 hours, no obligation.
- Accept the offer and we handle rigging, transport, and logistics.

Frequently Asked Questions About Used Heller Machines
Are used Heller machining centers reliable?
Yes. Heller has built machine tools in Nürtingen since 1894 and is one of Germany's most respected family-owned machine tool manufacturers. Heller machines produce Heller machines, meaning the company uses its own platforms to manufacture core components. Parts and service are supported through Heller Machine Tools in Troy, Michigan.
What CNC control does Heller use?
Heller machines run Siemens Sinumerik 840D sl with the HELLER4Operation interface. The HELLER4Industry suite adds HELLER4Services (predictive maintenance, axis and spindle status), HELLER4Performance (real-time workpiece analysis), and HELLER4Use (flexible usage model). Confirm control version and options.
What should I inspect before buying a used Heller?
Focus on spindle condition (HSK-A63/A100), ballscrew wear (review KGT-Analysis if available), trunnion or swiveling head function on 5-axis machines, tool magazine cycling (chain up to 240, rack up to 405 pockets), pallet changer, Siemens 840D sl control state, HELLER4Industry modules, and turning mode on C-series mill-turn.
Which Heller models hold their value best?
The H 4000 and H 5000 (4-axis production workhorses), HF 3500 and HF 5500 (5-axis), F 5000, and C 32 mill-turn hold the strongest residual values, driven by automotive, aerospace, and contract manufacturing demand. Machines with current HELLER4Industry packages command premium. Call (844) 478-8181 for valuations.
What is the difference between the HF and F series?
The HF-series places the 5th axis in the workpiece (trunnion with 225-degree swivel) for dynamic production of complex parts from multiple sides. The F-series places the 5th axis in the tool (swiveling spindle head) for 5-sided and simultaneous 5-axis machining where spindle-side geometry access is needed. Both deliver full 5-axis capability on a Heller horizontal platform.
Does Resell CNC offer financing on used Heller machines?
Yes. Resell CNC offers flexible financing options. Call (844) 478-8181 for terms.
How do I sell my used Heller?
Call (844) 478-8181 or email sales@resellcnc.com. We buy every Heller model nationwide. Free 24-hour appraisal.