Centerless Grinding Machine

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: FX-12S
• Type: Centerless Grinding Machine
• Processing Object: Thread
• Abrasives: Grinding Wheel
• Controlling Mode: Artificial
• Automatic Grade: Manual
• Cylindrical Grinder Type: Plunge Cylindrical Grinder
• Precision: High Precision
• Certification: CE
• Condition: New
• Machining Range (Diameter): 0.5-40mm
• Grinding Wheel Size: 305*150*120mm
• Adjusting Wheel Size: 205*150*90mm
• Grinding Wheel Speed: 1950rpm
• Adjusting Wheel Speed (Continuously Vari: 0-320rpm
• Transport Package: Woodbox
• Trademark: Hotman
• Origin: China
• Production Capacity: 50

Product Description

1. Technical specification:

NO.	Project	Unit	Model:FX-12S
1	Machining range (diameter)	Mm	0.5-40
2	Grinding wheel size (OD * W * OD)	Mm	Φ305*150*Φ120
3	Adjusting wheel size (OD * W * OD)	Mm	Φ205*150*Φ90
4	Grinding wheel speed	RPM	1950
5	Adjusting wheel speed (continuously variable speed)	RPM	0-320
6	Grinding wheel drive motor	KW	7.5
7	Adjusting wheel motor (servo motor)	KW	2.0
8	The hydraulic pump drives the motor	KW	1HP
9	The cooling pump drives the motor	KW	0.125HP
10	Adjusting wheel feed hand wheel	Mm	3.5/ RPM 0.02/ scale
11	Adjusting wheel fine tuning hand wheel	Mm	0.1/ to 0.001/ scale
12	Bench feed hand wheel	Mm	7/ RPM 0.05/ scale
13	Table micro adjustment hand wheel	Mm	0.2/ turn 0.001/ scale
14	Trim feed hand wheel	Mm	1.5/ revolution 0.01/ scale
15	Adjust wheel tilt Angle	Deg	+5°~-3°
16	Adjust the rotation Angle	Deg	±6°
17	Mechanical dimension	Mm	1800×1400×1450mm
18	Packing size	Mm	2350×1650×1770mm
19	Mechanical weight	Kg	1800
20	Packing weight	Kg	2000

2. Machine tool accuracy:
(1) Machine tool accuracy test list (included)
(2) After Hotman external grinder grinding (grinding), the following standard accuracy requirements shall be met: (Different grinding wheels shall be used for different materials of the work piece)

No.	Grinding mode	Work piece size (MM)	Flatness	parallelism	Remark
1.	Through grinding	Standard sample	≤0.001mm	≤Ra0.3	Select suitable grinding wheel within 100 workpiece length
2.	Cut-in grinding	Standard sample	≤0.001mm	≤Ra0.3

Note: Rough grinding (generally grinding amount 0.03~0.06mm); Fine grinding (generally 0.005~0.02mm)
3. Device description:
(1) Ontology
     The body and components are cast by Milhanna high grade cast iron FC30, which is artificially normalized heat treatment and then treated by natural aging. Components are processed by YASDA, MITSUI SEIKI, TOSHIBA, ELB and other world-class equipment once clamping processing. Precision size can be up to micron level, to ensure high precision equipment basic components.
(2) Automatic lubrication system
    The main shaft is made of SNCM-21H alloy steel, after tempering, carburizing heat treatment and then computer controlled cryogenic treatment, its surface hardness up to HRC-62° above, single effective hardening layer up to 1.5mm above. FX-12S spindle adopts dynamic oil film spindle.

3. Adjust the wheel drive system
    The driving Motor of the spindle of the adjusting wheel adopts YAS KAWA Servo Motor of Taiwan, and the FX-12S speed controls 0~320rpm to adjust the optimal linear speed. When the outside diameter of the adjusting wheel changes, the linear speed can still maintain the same, which ensures the precision and finish of the machining workpiece and grinds out the best product.
    The servo motor is skillfully designed and installed on the adjusting wheel box and directly driven by synchronous belt, which can be used to hit the tilt Angle with the adjusting wheel at the same time when grinding, to ensure that the two belt wheels are always parallel, which overcomes the inertia loss caused by the chain multi-section transmission of the old type centerless grinder and many adverse effects brought by the chain Angle, and avoids the frequent replacement of the chain and the zipper spring.

4. Main shaft circulating oil system
    Spindle automatic lubricating circulating oil (senior spindle oil 10#) and oil pressure dressing device is the same oil pump, external oil tank, easy to clean and change oil, spindle circulating oil through the double circuit device filter and equipped with pressure controller, to ensure the life of the spindle.