EMAG EMAG SN 310
Key Specifications
Max Workpiece ⌀
max workpiece length
x axis travel
z axis travel
guideway system
infeed drive
Overview
The EMAG SN 310 is a heavy-duty CNC out-of-round grinding machine designed for production grinding of large camshafts, eccentric shafts, and non-circular profile components up to 360 mm in diameter and 1,000 mm in length. The SN 310 steps up from the SN 204/208 platform to handle the larger, heavier workpieces found in commercial vehicle engines, industrial machinery, and heavy-duty diesel applications where both workpiece size and production volume demand a more substantial grinding platform.
The machine provides 500 mm of X-axis travel and 1,700 mm of Z-axis travel — significantly more than the SN 204/208 series — with hydrostatic guideways in all linear axes and a hydrostatic leadscrew drive in the infeed axis. This full-hydrostatic approach is essential for maintaining the surface finish quality and contour precision that out-of-round grinding demands: the elimination of stick-slip friction across all axes ensures that cam lobe profiles are generated with the accuracy required for modern engine performance and emissions compliance.
The SN 310’s 1,000 mm workpiece length capacity covers V6 and V8 overhead cam assemblies, large inline-six diesel camshafts, and industrial camshafts that exceed the 950 mm limit of the SN 208. The 500 mm X-axis travel accommodates larger-diameter grinding wheels for higher stock removal rates on bigger workpieces. The modular design supports various workhead, tailstock, and grinding wheel configurations tailored to specific application requirements.
The machine handles both conventional corundum and CBN grinding wheels, with CBN being the standard choice for production applications where consistent cam profile accuracy over thousands of parts justifies the higher wheel cost. The SN 310 is designed for integration into automated production cells with gantry loaders or robot loading for unattended operation.
New EMAG SN 310 machines typically price between $700,000 and $1,200,000 depending on configuration, spindle count, and automation level.
Full Specifications
| Parameter | Value |
|---|---|
| Max Workpiece Diameter | 360 mm (14.2 in) |
| Max Workpiece Length | 1,000 mm (39.4 in) |
| X Axis Travel | mmin |
| Z Axis Travel | mmin |
| Guideway System | Hydrostatic guideways in all linear axes |
| Infeed Drive | Hydrostatic leadscrew drive |
| Design | Modular with customizable workhead, tailstock, and wheel configurations |
| Grinding Media | Corundum or CBN |
| Grinding Type | Out-of-round (cam lobe) and cylindrical |
| CNC Control | CNC with cam profile interpolation |
| Workpiece Dia Max | mmin |
| Workpiece Length Max | mmin |
Specifications sourced from emag.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Full hydrostatic guideway system in all linear axes with hydrostatic leadscrew drive provides the ultimate in frictionless motion for out-of-round profile accuracy
- 1,000 mm workpiece length accommodates V6/V8 overhead cam assemblies and large diesel camshafts that exceed the capacity of the SN 204/208
- 500 mm X-axis travel supports larger grinding wheels for higher stock removal rates on bigger camshaft and eccentric component applications
- 360 mm diameter capacity handles the larger-diameter cams and eccentric components found in heavy-duty diesel and industrial machinery
- Modular design with customizable workhead, tailstock, and grinding wheel configurations enables optimization for specific application requirements
- 1,700 mm Z-axis travel provides extensive multi-wheel positioning capability for simultaneous grinding of widely-spaced cam lobes
Limitations
- Premium pricing of $700K-$1.2M limits the machine to high-value production applications where large camshaft volumes justify the capital investment
- Full hydrostatic system across all axes adds significant maintenance complexity requiring dedicated hydraulic power unit, filtration, and thermal management
- Larger footprint than the SN 204/208 series requires more floor space and potentially heavier foundation preparation
- Specialized out-of-round grinding platform not suitable for general-purpose cylindrical grinding where a universal grinder would be more cost-effective
Best For
Frequently Asked Questions
01
The SN 310 handles workpieces up to 360 mm diameter and 1,000 mm length with 1,700 mm of Z-axis travel. The SN 320 steps up to 640 mm diameter and 2,000 mm length with 2,700 mm of Z-axis travel. Choose the SN 310 for large automotive and medium industrial camshafts; the SN 320 for the largest industrial and marine engine camshafts.
02
Out-of-round grinding requires the X-axis to reverse direction thousands of times per workpiece revolution. Any stick-slip or friction in the axis motion introduces profile errors on the cam lobes. Hydrostatic guideways on all axes ensure that every axis movement is frictionless and vibration-free.
03
The SN 310 accepts camshafts up to 360 mm diameter and 1,000 mm length. This covers large inline-six diesel camshafts (typically 700-900 mm), V6/V8 overhead cam assemblies (500-950 mm), and most industrial camshafts.
04
Yes. The modular design supports integration with gantry loaders, robot cells, and conveyor systems for automated production. The NC tailstock and automated clamping systems enable unattended loading and unloading cycles.
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