| Sign In | Join Free | My burrillandco.com |
|
To do is better than to say,customer satisfaction is the eternal pursuit of enterprises.
2 Years
| Ask Lasest Price | |
| Brand Name : | Luyoung |
| Model Number : | M250 |
| Certification : | CE |
| Price : | USD1300-USD20000 |
| Payment Terms : | L/C, T/T |
| Supply Ability : | 30/SET |
| Delivery Time : | 45 working days |
The M250 is a very classic universal, small, precision cylindrical grinding machine. Known for its compact structure, high precision, and wide applicability, it is widely used in tool rooms, maintenance workshops, laboratories, and small-batch production.
Compact Design and Small Footprint
As a small grinding machine, it has a compact structure and typically occupies less than 2 square meters, making it ideal for installation in workshops or laboratories with limited space.
High Rigidity Bed
Despite its small size, the bed is usually made of high-quality cast iron with a rational structure, providing good rigidity and vibration damping characteristics, forming a stable foundation for precision grinding.
Precision Guideway System
The table and wheelhead typically use manually or hydraulically driven precision sliding guideways (V-and-flat type). These guideways offer good rigidity, smooth movement, and strong vibration resistance, representing the classic choice for traditional precision grinding machines.
Grinding Wheel Spindle System
High-Precision Spindle: Utilizes hydrodynamic sliding bearings or precision rolling bearings to ensure high rotational accuracy and stability of the spindle at high speeds, which is key to achieving high roundness and low surface roughness.
Grinding Wheel Size: Typically equipped with a grinding wheel with a diameter of around 250mm to 300mm, which is also the origin of its model name "M250".
Workhead and Tailstock
Workhead: The spindle is supported by precision bearings and can achieve variable speed (mechanical or inverter-controlled) to adapt to workpieces of different materials and diameters.
Centers: Both the workhead and tailstock are equipped with Morris tapers (e.g., Morse Taper #4) for accurate positioning and easy clamping.
Tailstock: The quill moves flexibly, and the spring pressure is adjustable, ensuring a stable clamping force on the workpiece during grinding.
Feed System
Cross Feed (Infeed): The wheelhead cross feed usually employs a manual fine-pitch lead screw equipped with a dial or DRO, enabling precise micron-level infeed to control the grinding depth.
Longitudinal Feed: The table longitudinal movement can be manual or hydraulic, ensuring smooth motion without creep.
High-Precision Machining Capability
With correct operation and maintenance, the M250 can consistently achieve:
High Roundness: ≤ 0.002 mm
High Cylindricity: ≤ 0.005 mm
Low Surface Roughness: Ra ≤ 0.4 μm or even lower
Operational Flexibility and High Versatility
Ideal for small-batch, high-mix part processing, offering easy setup and quick changeover between different products.
Capable of performing various grinding operations by equipping different attachments and fixtures.
Wide Machining Range
Primarily used for grinding cylindrical and conical external surfaces and shaft shoulders.
Typical applications include:
Precision shaft parts like transmission shafts, motor shafts, and spindles.
Precision measuring tools like plug gauges and snap gauges.
Special small parts for scientific research and experiments.
Cost-Effectiveness and Ease of Maintenance
Specification data
As a basic model, it has a relatively low acquisition cost. Its simple structure and mature, reliable mechanical components make it easy to maintain, and it is relatively user-friendly for operators.
| Table size (length x width) | mm | 500×250 | ||
| Workbench front and rear travel | mm | 260 | ||
| Workbench left and right travel | mm | 560 | ||
| Workbench left and right moving speed (stepless) | m/min | 3 20 | ||
| Worktable front and rear feed | Continuous (stepless speed regulation) | mm/min | 50-500 | |
| Intermittent (stepless speed regulation) | mm | 1 20 | ||
| Workbench T-slot (number of slots × slot width) | mm | 1×14 | ||
| grinding head | Distance from grinding wheel spindle centerline to work table | mm | 470 | |
| Vertical feed handwheel feed amount | Handwheel per turn | mm | 2 | |
| Handwheel per grid | mm | 0.01 | ||
| Transverse feed handwheel feed amount | Handwheel per turn | mm | 4 | |
| Handwheel per grid | mm | 0.02 | ||
| Grinding wheel spindle speed | r/min | 2850 | ||
| Grinding wheel size (outer diameter × width × inner diameter) | mm | Φ200×16×Φ31.75 | ||
| hydraulic system | spindle motor | kw | 1.5 | |
| Work pressure | Mpa | 3 | ||
| Fuel tank capacity | L | 60 | ||
| Working accuracy | Parallelism of the machined surface to the base surface | mm | 300∶0.01 | |
| surface roughness | μm | Ra0.32 | ||
| Machine weight | net weight | kg | 1100 | |
| Gross weight | kg | 1200 | ||
| Total motor power | kw | 2.79 | ||
| Grinding head motor power | kw | 1.1 | ||
| frequency | w | 50 | ||
| Overall dimensions (length × width × height) | mm | 1700×1300×1800 | ||
| Packing box dimensions (length × width × height) | mm | 1400×1200×1900 | ||
The M250 Small Grinding Machine is the "classic workbench" in the field of precision machining. It does not pursue extreme efficiency like large, fully automatic grinders, but instead achieves a perfect balance between precision, flexibility, and cost-effectiveness for small workpieces.
For users involved in part rework, tool manufacturing, prototype development, or small-batch production of precision shafts, the M250 is a reliable, practical, and cost-effective piece of fundamental precision equipment. It represents the reliability and essence of traditional mechanical grinding machines.
|
|
