UNIVERSAL CYLINDRICAL GRINDING MACHINES UG SERIES
Universal grinding machines for maximum precision and flexible applications
Four Core Areas of the EMAG Classic Line The UG series is part of the EMAG Classic Line – the efficient entry into precision manufacturing. These machines focus on the essentials and offer an optimized range of functions for typical grinding tasks. The basic machine comes from the international EMAG production network and is equipped with proven process and machining technology. The result: fast commissioning, reproducible results, and high process reliability. This makes the UG series ideal for precision grinding processes in toolmaking, prototype manufacture, and series production. You also benefit from the global EMAG service network and fast spare parts supply.
1 Base Machine
2 Process Technology
+ A robust machine with a high price-
+ Decades of experience in process technology
+ Components from proven suppliers
+ Innovative tool and technology development
performance ratio
2
and engineering
UG SERIE | Four core areas of the EMAG Classic Line
3 Turnkey Solution
+ EMAG assumes full responsibility for quality and lead time—as a complete turnkey solution, if desired
4 Global Customer Support
+ Service technicians worldwide + Global spare parts availability
+ The customer receives a technology package
including NC program, grinding tools, coolant, and workholding technology
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EMAG UG Series: High-Precision Universal Cylindrical Grinding Machines for Inte EMAG‘s UG series delivers maximum precision, flexibility, and cost-effectiveness in the world of universal cylindrical grinding. With grinding lengths ranging from 400 to 1,500 mm, the series covers a wide range of workpiece sizes—from short precision parts to long shafts and complex components with internal and external machining. Thanks to the combination of a robust base machine, highquality EMAG components, and proven grinding technology, the UG series offers a technically sophisticated solution for workshops, toolmakers, and production companies that want to perform universal grinding tasks efficiently and reproducibly.
UG 400
Grinding length 400 mm
UG 630
Grinding length 630 mm
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ernal and External Grinding
The machines in the UG Series are equipped with preloaded precision linear guides and high-resolution linear measuring systems in the X and Z axes. Servo motors with ball screws ensure precise positioning and repeatability. The automatic B-axis with a swivel range of −15° to +225° allows the use of multiple grinding spindles and thus flexible machining strategies.
X B
Z
UG SERIE | High-precision universal cylindrical grinding machines for internal and external grinding
THE AXLE ASSEMBLY
UG 1000
Grinding length 1.000 mm
UG 1500
Grinding length 1.500 mm
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Grinding Head: Direct Drive Technology for Maximum Machining Precision The UG series grinding head is based on direct-drive motor spindles with a maximum power output of up to 11 kilowatts. The grinding head with B-axis enables a wide variety of configurations of external and internal grinding wheels. Precision grinding spindles are used for internal machining with oil-air lubrication. An out-of-round grinding package is also available as an option for the UG series.
Overview of available grinding head configurations:
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1
UG 630 for flexible production grinding
UG SERIE | Grinding head
CONFIGURATION EXAMPLES FOR TOOLMAKING:
» Twin spindle (direct drive) » IPG (2 x diameter and axial positioning) » Driven tailstock (no clamping required)
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UG 1000 Basic for toolmaking
» 2 x external spindle (direct drive) » 1 x internal spindle (GMN) » IPG (diameter and axial positioning) » Fanuc 0i
3
UG 1000 including out-of-round grinding
» 2 x external spindles (direct drive) » 1 x internal machining spindle (GMN) » Workpiece spindle with direct drive » Dressing spindle » Fanuc 31 B plus
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Machine Structure 1
WORKPIECE SPINDLE
+ Design:
Compact workpiece spindle unit for high rigidity and ease of maintenance
+ Drive:
Workpiece spindle with direct drive
+ Roundness accuracy:
0.5 µm on test workpiece
+ Bearing:
Precision tapered roller bearing with high load capacity
+ Swivel range:
0 to +30° for flexible machining
+ Operating modes:
Grinding between centers or in the chuck
+ Pneumatic lifting device:
Facilitates setup and positioning
+ Optional AE sensory equipment
(structure-borne sound sensors): Detection of workpiece contact, reduced
+ Optional:
Motor spindle for out-of-round grinding
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DRESSING
The UG machines are available with various dressing systems: + Table-mounted swivel arm dresser:
Particularly effective for grinding wheel dressing and allows flexible positioning on the machine table
+ Workpiece spindle dresser system:
Direct integration on the workpiece spindle
+ Tailstock dresser system:
Mounted on the tailstock for special dressing applications
+ Dresser spindles are also available as an option.
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UG SERIE | Machine structure
2
TAILSTOCK
+ Quill:
Ø 63 mm, for Morse 4 taper
+ Fine adjustment:
± 40 µm for correcting taper errors (< 1 µm accuracy)
+ Actuation:
manual or optional hydraulic
+ Hydraulic reset:
for quick workpiece changeover
+ Pneumatic lifting function:
facilitates setup and positioning
+ Sensory equipment:
control of correct workpiece seating
+ Guidance:
precision-mounted quill for low-backlash running and high rigidity
+ Optional:
synchronous tailstock or NC tailstock
The table-mounted swivel arm dresser is particularly suitable for universal dressing of various grinding wheel profiles. It can be flexibly positioned on the machine table and allows quick adaptation to different dressing requirements.
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Technical Data UG 400
UG 630
UG 1000
UG 1500
Center height/Width between center
mm
175/400
175/630
175/1,000
175/1,500
Grinding length (straight wheel/angular wheel)
mm
400/240
630/450
1,000/825
1,500/1,220
Weigth between center, max.
kg lb
132
120
150
Clamping Ø (chuck) max.
mm
100 4
3.5
3.5
90
-
Table stroke
mm
640
885
1,240
1,860
Min. increment / pulse
mm
0.0001
0.0001
0.0001
0.0001
in in
in
7/16
16/9
60
7/25
25/18
80
176
90
7/39
39/32 264
7/59
59/48
331
Longitudinal axis (Z-axis)
Feed servomotor torque
in
Nm
25
8
35
12
49
12
73
12
ft-lbs
5.9
8.8
8.8
8.8
°
8.5
8.5
8.5
5
Slide stroke
mm
320
320
320
320
Travel min./pulse
mm
0.0001
0.0001
0.0001
0.0001
Machine table swivelling range Wheel slide (X-axis)
Min. increment / pulse
in
Nm
12.5
8
12.5
8
12.5
8
12.5
8
ft-lbs
5.9
5.9
5.9
5.9
°
8.5
8.5
8.5
-
°
-15 to +225
-15 to +225
-15 to +225
-15 to +225
B- Axis Resolution
°
0.0001
0.0001
0.0001
0.0001
Swiveling time for 180°
s
8
8
8
8
arc seconds
±2
±2
±2
±2
mm
500 × 40 (50ROS )× 203.2
500 × 63 (80ROS) × 203.2
500 × 63 (80ROS) × 203.2
500 × 50 (80ROS) × 203.2
Machine table swivelling range Swivel axis (B axis) Swivel range
B- Axis Positioning Repeatability Wheel Head (OD/face grinding) Grinding wheel (left/right) Ø
10
in
20 x 1.5 (50ROS) x 8
20 x 2.5 (80ROS) x 8
20 x 2.5 (80ROS) x 8
20 x 2 (80ROS) x 8
Spindle motor power
kW
7.5
7.5 (11 optional)
7.5 (11 optional)
7.5 (11 optional)
Peripheral speed
m/s
60
60
40
50
*Alle Eingaben in mm
UG 630
UG 1000
UG 1500
mm
120
120
120
-
1/min
20,000–125,000
20,000–125,000
20,000–125,000
-
mm
50
50
50
-
–
MT4
A2-4/MT4 (MT5)
A2-4/MT4 (MT5)
-
1/min
30–800
30–800
30–800
-
°
0 to +30
0 to +30
0 to +30
-
Internal grinding unit HF spindle mount Ø Speed range Grinding wheel Ø
in
5
in
2
5
5
2
2
Workpiece spindle (workpiece head) Centering cone Spindle speed (stepless) Swivel range Motor torque
Nm
ft-lbs
8.8
12
22
22
-
–
MT4
MT4
MT4
MT5
Quill diameter/quill stroke
mm
60/40
60/40
60/40
65/40
Micro Taper Correction
mm
±0.040
±0.040
±0.040
±0.040
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16
UG SERIE | Technical data
UG 400
Tailstock Centertaper
in
2/1.5
2/1.5
2/1.5
2.5/1.5
Dressing systems For external grinding
–
On workpiece head, dressing blades
For internal grinding
–
on table swing arm type
Hydraulic power unit Fuel tank capacity Engine power
l
30
30
30
30
kW
0.75
0.75
0.75
0.75
CONTROL AND OPERATION FANUC 0i-TF Plus control system The machines in the UG series are equipped with the FANUC 0i-TF Plus CNC control, which offers intuitive operation via a dialog-oriented HMI. For out-of-round grinding applications, the FANUC 31 B Plus is available as an option, offering enhanced computing power for complex contours. The control platform is established worldwide—a clear advantage for international users in terms of service, spare parts supply, and programming convenience.
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Global Customer Service EMAG operates a global service network with locations in Europe, North and South America, and Asia. This decentralized structure enables short response times and rapid on-site presence for service requests. All service technicians have access to a shared knowledge pool. Experience gained from service cases is systematically analyzed and made available worldwide—so customers benefit from the entire know-how of the EMAG organization, irrespective of their location. As an OEM supplier, EMAG guarantees customers the fastest possible support. On request, we can deliver a complete turnkey package: machine, tool, workholding technology, cutting fluids, and finished workpiece program. The customer receives a production-ready solution from a single source.
Market Company America
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» EMAG L.L.C. Detroit, USA
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» EMAG DO BRASIL São Paulo, Brazil
» EMAG Salach – España Barcelona, Spain
» EMAG Salach – Eastern Europe Eastern Europe
» EMAG Milano Milano, Italy
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UG SERIE | EMAG Group
EMAG Group Technology Leader in Metalworking The EMAG group, headquartered in Salach, Germany, has been one of the world‘s leading manufacturers of machine tools for over 150 years. With more than 30 locations worldwide, the company is one of the few system providers to cover the entire process chain from soft to hard machining.
Market Company Asia » EMAG (China) Machinery Jintan - Taicang - Chongqing, China » EMAG Middle East Dubai, United Arab Emirates » EMAG India Bangalore, India » EMAG Korea Seongnam, South Korea » EMAG Thailand Chonburi, Thailand
TECHNOLOGY SPECTRUM The technology portfolio includes turning, drilling, milling, gear cutting (hobbing, shaving, broaching, shaving), grinding (gear grinding, cylindrical grinding, crankshaft grinding, CBN grinding), laser welding and joining, and electrochemical machining (ECM/ PECM).
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TECHNOLOGY. CONNECTED. Turning Chucked Components
Gear Grinding
Turning Shafts
Cylindrical Grinding
Out-of-round Gr
Milling
rinding
Gear Hobbing
ECM/PECM
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358-1-GB/09.2026· Printed in Germany · © Copyright EMAG · Subject to technical changes.
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