USC 850 - The precise and powerful universal lathe for large turned parts

The USC 850 is a state-of-the-art universal lathe that has been specially developed for the precision and efficient machining of large turned parts. With its robust design, state-of-the-art control technology and excellent machining accuracy, it is ideal for use in the supplier industry, aviation and general mechanical engineering.

With a maximum turning diameter of 700 mm and a turning length of 2,000 mm, this machine offers exceptional machining flexibility. It is capable of safely clamping and machining workpieces weighing up to 600 kg with a tailstock. The USC 850 enables high-precision machining that meets even the highest requirements for dimensional accuracy and surface quality.

Highest precision and productivity for demanding machining requirements

Stable machine base body as the basis for high-performance machining

An outstanding feature of this universal lathe is its stable machine structure. The machine base is designed in a 45° inclined bed construction, which not only guarantees exceptionally high static and dynamic rigidity, but also ensures optimum vibration damping. By using high-quality, stress-relieved gray cast iron, the machine minimizes manufacturing deviations caused by deformation and ensures consistent machining results over the long term. This design is complemented by generously dimensioned roller recirculating guides, which enable precise and low-wear movement of the axes.

Machine design of the USC 850 universal lathe with 45° inclined bed construction made of cast iron for optimum stability and vibration damping. — The USC 850 is equipped with a solid 45° inclined bed which, in combination with high-quality cast iron, offers exceptional static and dynamic rigidity. This design ensures minimized vibrations and consistent manufacturing accuracy.

Powerful main spindle for maximum chip capacity

The main spindle of the USC 850 is designed for maximum performance and precision. It is driven by a belt drive.

With a continuous power rating of 22 kW (30-minute duty cycle: 30 kW), the spindle delivers the necessary power. For even higher cutting performance, a 30-kW spindle (30-minute duty cycle: 37 kW) with a two-stage gear ratio is available as an alternative.

Another key quality feature of the spindle unit is its high-precision bearing system. The cylindrical roller bearing ensures outstanding rigidity and precise concentricity—even under maximum load. Thanks to precise assembly, dynamic balancing, and optimized running-in procedures, the spindle achieves concentricity accuracies in the micrometer range.

High-performance main spindle of the USC 850 universal lathe with belt drive, high-performance and precision bearings for precision turning. — The various main spindle variants of the USC 850 offer a continuous power output of up to 30 kW (37 kW for 30 minutes) and achieve speeds ranging from 10 to 2,000 rpm. Thanks to precise bearings and optimized torque transmission, they ensure maximum concentricity and efficiency

Speed range: 50-2,000 min⁻ ¹
Spindle clearance: 132 mm for large workpieces
Spindle holder: A2-11
Bearing arrangement: cylindrical roller bearings
Optimum torque transmissionvia belt drive, optionally available with a two-stage gear ratio

Versatile turret

The USC 850 universal lathe is equipped with a BMT75 turret, which enables efficient complete-machining of complex workpieces. Optionally, the turret can be configured for powered tools.

The powered tools achieve speeds of up to 3,000 rpm with a drive power of 5 kW. This allows not only turning but also a wide range of milling and drilling operations with the highest precision. A BMT75 interface is used as the tool holder.

The internal coolant supply, which is fed directly through the turret, is particularly noteworthy. This ensures a targeted cooling system at the cutting edge and improves both the tool life and the surface quality of the machined workpieces. The robust design of the turret in conjunction with precision indexing enables even heavy rough-machining and finishing operations to be carried out with high dimensional accuracy. A hydraulic clamping system ensures exact positioning even with high cutting forces.

Torretta porta utensili del tornio universale USC 850 con 12 posizioni, per alloggiamento di utensili di tornitura e utensili motorizzati con alimentazione di refrigerante integrata per una lavorazione versatile. — La torretta porta utensili a 12 stazioni della USC 850 consente una lavorazione altamente flessibile con utensili di tornitura motorizzati. Velocità fino a 3.000 min⁻ ¹ e un'alimentazione interna di refrigerante garantiscono operazioni di fresatura e foratura precise ed efficienti.

12 tool stations for driven tools
Motor speeds of driven tools: up to 3,000 min⁻ ¹
Power of the driven tools: 5 kW
Tool receptors: BMT 75

Tailstock and steady rests - maximum stability for long workpieces

The USC 850 is equipped with a robust hydraulic tailstock that ensures reliable workpiece support. The quill has a diameter of 150 mm and a stroke of 200 mm. The center point is held by an MK5 taper.

The machine can be supplemented with a hydraulic steady rests for machining particularly long or thin-walled workpieces. This offers clamping ranges from 30 to 245 mm (alternatively from 45 to 310 mm) in diameter and enables secure support even with critical workpiece geometries. The tailstock is operated either via the CNC program or manually using a foot switch. The hydraulic clamping forces can be precisely adjusted via adjustable control elements and are displayed digitally.

Hydraulic tailstock and steady rests of the USC 850 universal lathe for secure support of long and heavy workpieces for precision turning operations. — The hydraulic tailstock with MK5 holder and a quill stroke of 200 mm enables stable workpiece support. Supplemented by an optional hydraulic steady rest with clamping ranges from 30 to 245 mm, the USC 850 ensures maximum stability for long or thin-walled workpieces.

The USC 850 universal lathe impresses with its combination of high machining precision, robust design and versatile application options. It is the ideal solution for companies that require an economical and reliable lathe for demanding machining tasks.

USC 850 - Component of the EMAG Classic series

The USC 850 is part of the EMAG Classic series, which is characterized by clarity, efficiency and economy and is the ideal entry-level solution into the world of EMAG.

Features of the EMAG Classic series:

Optimized basic machines equipped with proven EMAG technologies
Worldwide service with full access to the global service network
Focus on low investment budgets with maximum efficiency
Reduced selection of options with a focus on high-productivity soft turning

USC 850_Line — With EMAG, you not only get a machine, but a well-thought-out manufacturing solution that is precisely tailored to your requirements and your budget.

Gallery

Exterior view of the USC 850 universal lathe with closed housing, modern CNC panel and stable machine structure for precision turning.

Work area of the USC 850 universal lathe with generous workpiece holder and robust machine structure for precision turning operations.

Advantages USC 850

High-precision production
Stable 45° sloping bed design for maximum rigidity
Powerful spindle technology with optimum torque transmission
Flexible BMT75 turret for complete-machining applications
CNC-controlled C-axis for precision milling and drilling work
Hydraulic tailstock and steady rests for stable workpiece clamping

Workpieces

The Right Manufacturing Solution for Every Workpiece

Image of a 155 mm artillery projectile illustrating the precision of machining and the complexity of the internal structure typical of defense industry requirements.

155 mm Artillery Shells

In the defense industry, maximum precision, reliability and efficiency are crucial. The USC 850 from EMAG fulfills these requirements exactly and enables the high-quality turning of 155 mm artillery…

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