Among others, WF-300 is a standard linear encoder which has been used most frequently (at TTL level). WF-500 is of an ultra small and thin version, representing the highest technical level in today's China, hence facilitating installation at some narrow places and of special purpose measuring apparatuses. WF-700 is a kind of newly designed product for the oil pressure system and also places where it is extremely hard for installation work. Its emergence is to expand the scope of applications of digital readout devices.
WF-300NC, WF-600NC and WF-500NC are the latest launched CNC machine tools feedback testing grating linear encoders, with dimensions being similar to those of WF-300, WF-600 and WF-500. They output signals as per the industrial standards EIA- 422-A, with a resolution factor at 0.001 mm, and a maximum moving speed of 2.3m/s, and a supply voltage at DC 5 volts. They have been widely applied in fully feedback CNC machine tools. Actually, the company has taken the lead at present in such grating linear encoders which are able to reach these above said technical readouts.
Specifications/Model	WF-300	WF-500	WF-600	WF-700	WF-900	WF-300NC	WF-500NC	WF-600NC
Measure length	70-1020	70-470	1000-3000	170-1240	0-50	70-1020	70-470	1000-3000
Only for one per 50mm
Cross Section Size(mm)	25x34	18x20	30x43	40x42	20-40	25x34	18x20	30-43
Accuracy	±3/±5/±10µm(20°C/68°F					±3/±5µm(20°C/68°F)
Max. trversing speed	1m/s					2.3m/s
Repeatability	±1counting impulse
Protection	IP55
Resolution	0.5/1/5	0.5/1/5	0.5/1/5	5	1/5	1	1	1
Output	TTL	TTL	TTL	TTL	TTL	EIA-422-A	EIA-422-A	EIA-422-A