Name: 250AH/250AHR/250AHD Precision Surface Grinding Machine
Rating: 5 (99 reviews)

EDM Discharge Machining Explained: Process, Tooling and Machine Selection -2026 -10-14

A 0.6 mm inside corner in a hardened H13 mold insert forces a small end mill into 52 HRC steel, and that is a tool-breaking job most shops would rather decline. EDM discharge machining sidesteps the ...

What Does EDM Stand For in Machining? Electrical Discharge Machining Explained -2026 -10-07

Harden a mold insert to 52 HRC and the milling cutter that shaped it in the soft state stops being an option. The corner radius is 0.3 mm, the rib is 40 mm deep, and the tool simply cannot reach into...

A Guide to CNC Machining for Aerospace: Tolerances, EDM and Machine Tool Choices -2026 -09-30

A job shop is quoting a titanium bracket: Ti-6Al-4V, 240 mm long, two bearing bores held to ±0.010 mm, a 0.8 mm-wide seal groove that must finish at Ra 0.4 µm, and a first article inspection report d...

CNC Machining Centers Explained: Types, Key Specifications, and How to Choose -2026 -09-23

A machining contractor once brought us a quotation for 2,000 pump housings with a simple requirement: a ±0.008 mm bore tolerance, documented on every part. The shop's manual mills could hit that numb...

Model	Unit	M250AH	M250AHR	M250AHD
Table size	mm	500×250	500×250	500×250
Max vertical travel of long	mm	540	540	540
Max vertical travel of long	mm	280	280	280
Max vertical travel of grinding head	mm	460	460	460
Max loading capacity	kg	420	420	420
Number of T-slot	mm/n	14×1	14×1	14×1
Table speed	m/min	45800	45800	45800
Longitudinal handwheel movement	mm	0.02mm/grid 5mm/r
Longitudinal automatic handwheel movement	mm	0.1-8	0.1-8	0.1-8
Longitudinal movement rapid speed	mm/min	50Hz 790	50Hz 790	50Hz 790
Grinding wheel dim	mm	250×20×31.75	250×20×31.75	250×20×31.75
Spindle speed	r/min	2800/3600	2800/3600	2800/3600
Max up and down movement	mm	432	432	432
Up and down handwheel movement	mm	0.001mm/grid 0.2mm/r
Up and down rapid movement speed	mm/min	630	630	630
Spindle motor	kw	1.5	1.5	1.5
Up and down motor	w	80	90	90
Longitudinal motor	w	80	80	750
Oil pump motor	kw	2.2	2.2	2.2
Machine height	kg	1900	1900	1900
Packing size	mm	2200×3050	2200×3050	2200×3050
Net weight	kg	1550	1550	1550