TOS BHU 50A Universal Cylindrical Grinder

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TOS BHU 50A Universal Cylindrical Grinder

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TOS BHU 50A Universal Cylindrical Grinder Specification

Product Type
Universal Cylindrical Grinder

General Use
External and internal cylindrical grinding

Material
Cast Iron and Steel

Type
Precision Machine Tool

Capacity
Max Swing Over Bed 500 mm

Weight (kg)
Approx. 4000 kg

Computerized
No

Automatic
Semi-automatic

Control System
Manual / Electrical

Drive Type
Electric Motor Driven

Grinding Diameter
Max 500 mm

Grinding Length
Max 2000 mm

Spindle Speed
Up to 1940 rpm

Grinding Wheel Size
Max 500 mm x 100 mm

Voltage
400 V / 3 Phase / 50 Hz

Dimension (L*W*H)
4400 mm x 2070 mm x 1650 mm

Feature
High-precision, robust construction, coolant system

Color
Green / Grey

Coolant Pump
Included

Max Workpiece Weight
500 kg

Distance Between Centers
2000 mm

Tailstock Quill Travel
50 mm

Safety Features
Overload Protection, Emergency Stop

Installation Area Required
Approximate 10 m

Table Traverse
Up to 2000 mm

Surface Finish
Ra 0.2 m

Wheelhead Swivel Range
30

Motor Power
4 kW

Chuck Type
Three-jaw / Face Plate (optional)

Lubrication System
Integrated

Internal Grinding Attachment
Available

Grinding Accuracy
0.002 mm

TOS BHU 50A Universal Cylindrical Grinder About

Make - TOS-Hostivar (Czech Republic)
Model - BHU 50 A/1000
Center Height - 255 mm
Max. Diameter of Job - 500 mm
Grinding Length of Job - 1000 mm
Grinding Wheel Size - Diameter 500 mm x 100 mm Width
Work-Head Speed - 18 rpm to 560 rpm
- Equipped with Internal Grinding Attachment.
- Complete with 2 x 2-point steady and 2 x 3-point steady.
- Complete with a total of 2 x Internal Grinding Spindles.
- With Wheel Dresser, Work-Head Chuck, protection Covers etc.
- With Magnetic Coolant Filtration Unit, coolant pump and tank.
- With Rapid Longitudinal Travel on the Table.
- One of the latest series of machines made by TOS (Joy-stick model).
- Operating manual & electrical circuit drawings available.
- Machine is very Heavy-Duty type Universal Cylindrical Grinder.
- Machine is in excellent working condition.

Video link - https://youtu.be/lNCAXIYSGUM

Exceptional Precision and Capacity

Engineered for demanding grinding tasks, the TOS BHU 50A delivers accurate results with a grinding accuracy of 0.002 mm and a flawless surface finish. Its ability to handle workpieces up to 500 kg and accommodate a distance of 2000 mm between centers makes it ideal for large and heavy components.

Versatile Grinding Solutions

This universal cylindrical grinder supports both external and internal cylindrical grinding, thanks to its internal grinding attachment and 30 wheelhead swivel range. Multiple chuck options, including three-jaw and face plate, broaden its application across various parts and geometries.

User-Friendly Operation and Safety

Operators benefit from manual or electrical controls in a semi-automatic framework, supported by integrated safety features such as overload protection and emergency stop. The built-in coolant pump and lubrication system enhance reliability and prolong equipment life.

FAQs of TOS BHU 50A Universal Cylindrical Grinder:

Q: How does the TOS BHU 50A cylindrical grinder ensure high grinding accuracy?

A: The TOS BHU 50A maintains a grinding accuracy of 0.002 mm, achieved through its precision engineering, stable cast iron and steel construction, and integrated lubrication and coolant systems that prevent vibration and thermal variation during operation.

Q: What types of workpieces can be processed on the TOS BHU 50A?

A: The grinder is designed for external and internal cylindrical grinding of cast iron and steel components, with a maximum workpiece weight of 500 kg, swing over bed of 500 mm, and grinding length of up to 2000 mm.

Q: When should the internal grinding attachment be used?

A: Utilize the internal grinding attachment when you need to grind internal surfaces or features of a workpiece, particularly for achieving precise finishes and tight tolerances inside cylindrical forms.

Q: Where is the TOS BHU 50A suitable for installation?

A: This machine requires approximately 10 m of installation space and is well-suited for manufacturing workshops, repair centers, and precision engineering facilities that handle large and heavy cylindrical parts.

Q: What is the process for operating the grinder?

A: Operation involves mounting the workpiece with the selected chuck type, setting up the grinding wheel parameters, adjusting the table traverse and wheelhead swivel, and controlling the grinding cycle via manual or electrical commands. The built-in coolant and lubrication systems should always be active during operation.

Q: How does the integrated coolant and lubrication system benefit usage?

A: These systems help maintain optimal grinding temperatures, reduce wear on components, and contribute to the machines long-term reliability, ensuring consistent high-quality surface finishes over extended production runs.

Q: What key safety features are included with the TOS BHU 50A grinder?

A: Safety is enhanced by the inclusion of overload protection, which safeguards against electrical and mechanical stress, and an emergency stop button that allows rapid cessation of machine activity if necessary.

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