Tsudakoma THNC Series Tilting Rotary Tables

THNC SERIES TILTING ROTARY TABLES

THNC-251 • 301 SPECIFICATIONS

Model		THNC-251		THNC-301
Tilt Range		0° ~ +93°
Table diameter		250		320
Table height at 0° position		230		265
Center Height at 90° position		210		235
Center bore	Nose dia.	40H7		40H7
	Thru dia.	32		40
Table T-slot width		12H7		14H7
Guide block width		18h7		18h7
Servo motor-Fanuc*-3000rpm		Rotary	Tilt	Rotary	Tilt
		Alpha 4i	Manual	Alpha 8i	Manual
Speed reduction ratio		1/180	-	1/180	-
Max. table rotation speed with 3000 rpm motor		16.7	-	16.7	-
Clamp system		Hydraulic	Manual	Hydraulic	Manual
Clamp torque Nm (ft.lbs.)		490 (361) @500psi	490 (361)	833 (614) @500psi	1,862 (1,372)
Indexing accuracy (arc sec.)		±7.5	±30	±7.5	±30
Repeatability (arc sec.)		±2	-	±2	-
Net weight kg (lbs.)		125 (275)		190 (418)
Allowable wheel torque (Rotary)		470Nm (346 ft.lbs.)		764Nm (563 ft.lbs.)
Allowable work weight kg (lbs)	0° tilt angle	80 (176)		180 (396)
	0° - 90° tilt angle	40 (88)		100 (220)
Allowable load when table clamped	F N (lbf)	6,860 (1,537)		9,800 (2,195)
	FxL Nm (ft lbs)	490 (361)		833 (614)
	FxL Nm (ft lbs)	490 (361)		1,470 (1,083)
*Other motors & rpm available • specification subject to change without notice • Dimensions = mm

THNC-251 • 301 DIMENSIONS

THNC-251 • 301 ACCURACIES

Inspection Items • Dimensions = mm		THNC-251 • 301
Inspection Items • Dimensions = mm		Standard	With Scale
Table top flatness (concave)	OAL	0.01	0.01
Table top runout	-	0.015	0.015
Parallelism of table top to frame bottom	OAL	0.02	0.02
Parallelism of tilt axis center to frame bottom	OAL	0.02	0.02
Center bore runout	Spindle nose	0.01	0.01
Tilting accuracy (arc sec)	0° ~ +90°	±30	±30
Indexing accuracy (arc sec)	-	±7.5	±5
Parallelism of table top to frame bottom guide blocks	OAL	0.02	0.02
Perpendicularity of table top to frame bottom guide blocks	OAL	0.02	0.02

THNC-251 • 301 CLAMPING BLOCK