Grinding machine with fixed table and 300-mm diameter wheel
Grinding machine S.P. 500Model S.P. 500
This surface grinding machine with fixed table is supplied with:
- Hard-chromium-plated column
- Wheel flange and Cup wheel
- Semi-automatic dresser
- Coolant system
- Instruction Manual
- Set of wrenches
With this Grinding machine with fixed table it is possible to grind big-size workpieces like cylinder heads with mm 520 x 210 surfaces, due to the considerable 300-mm diameter of the wheel that rotates at the speed of 1400 r.p.m..
It is suitable for grinding also tools, die-shop parts, plates and others. For this Surface Grinding Machine, besides the recovery of the eventual wear of the vertical translation screw, it is provided the re-alignment of the wheel motor to the axis to obtain high quality levels also in time.
This vertical-axis Grinding machine is provided with:
- CAST IRON BED to maintain the geometric stability of the grinding machine in time, too.
- HARD CHROMIUM-PLATED CAST IRON COLUMN, protected by bellows and supported by four adjustable precision bearings, broadly sized for this type of grinding machine with fixed table.
- Three-phase MOTOR air-cooled by double jacket, to prevent the overheating of the grinding machine motor during continuous machining and to keep the temperature of the motor shaft and of bearings constant.
- Hardened, ground and dynamically balanced SHAFT, supported by precision ball bearings, widely sized for this type of grinding machine with fixed table and self-adjusting by means of springs for the backlash preload, to absorb thermal expansions.
- VERTICAL TRANSLATION SCREW supported by opposite and adjustable ball bearings, with apt motion for maintaining, in this model of grinding machine with fixed table, the wheel work field free from hindrances and for avoiding dust depositions.
- Metal BELLOWS for a better protection of the vertical translation screw of the grinding machine.
- Opposite bronze NUTS, for the recovery of the eventual wear in time of the vertical translation screw of the grinding machine with fixed table.
- REGISTRATION DOWELS to re-align the wheel motor of the grinding machine to the axis, obtaining parallel surfaces also in time.
- HANDWHEEL of the grinding machine, supported by three bearings and engaged on the screw by means of a pair of helical gears, equipped with graduated drum, supported by a trust bearing, for a stock removal of mm 0.01 – 0.02 – 0.03 for each single pass. The rapid feed per handwheel turn is mm 2.
- KNOB WITH JACK, for the programmable micrometric feed of mm 0.01 – 0.02 – 0.03 – 0.04 per pulse, which allows a simple use by avoiding the constant increment control.
- SLOT to permit the maximum use in height of the work field of the grinding machine wheel and to clamp non-magnetic parts and accessories such as: magnetic chuck, self-centering chuck and squares.
- Low-voltage CONTROLS, protection, indicator light and all requisites to comply with safety and conformity regulations provided for this type of grinding machine with fixed table.
- HANDLES, SHAPES AND SIZES of the grinding machine with fixed table designed to meet the current ergonomic recommendations for work.
Accessories
Grinding machine with fixed table S.P.500
Technical characteristics:
Grinding machine with fixed table and 300-mm diameter wheel S.P.500
| Max. grinding surface | mm 210x520 |
| Useful basic surface | mm 200x500 |
| Distance between wheel and base (without chuck) | mm 300 |
| Cast-iron column | mm ø 115 |
| Bellows for drive-screw/column | metal/rubber |
| Hard-chromium-plated column | included |
| Rapid feed per handwheel turn | mm 2 |
| Fine infeed | mm 0.01 ÷ 0.04 |
| Automatic feed synchronized with table turns | - |
| Semi-automatic dresser | included |
| Wheel motor rotation | rpm 1400 |
| Cup wheel (24 grain) | included, mm ø 300x74x127 |
| Diamond grinding wheel | optional, mm ø 300x50x127 |
| CBN ginding wheel | optional, mm ø 300x50x127 |
| Diamond grinding wheel for concrete | optional, mm ø 300x50x127 |
| Segment-holder (24 grain) | optional, mm ø 300 |
| Segments | optional, mm 60x55x22x110 |
| Table swivel | - |
| Table revolutions by means of pulleys | - |
| Table revolutions with speed reduction and speed change gear | - |
| Power-rate of wheel motor | kW 3.6 - (HP)(5.5) |
| Power-rate of rotary-table motor | - |
| Power-rate of electric pump | kW 0.06 |
| Magnetic chuck | optional, mm 200x450x75(h) |
| Width x depth of machine | mm 1100x900 |
| Max. / min. machine height | mm 2170/2162 |
| Net weight | kg 450 |
Frequently asked questions
The S.P. 500 grinding machine can grind surfaces up to 210x520 mm, thanks to the 300 mm wheel diameter, also suitable for cylinder heads, tools and plates.
The wheel motor of the S.P. 500 grinding machine runs at 1400 rpm, a value optimised for the larger 300 mm wheel diameter.
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