TH430 bare machine is integrally formed by precision casting through HT250 cast iron resin sand cores, and is totally aged. The DX430 bare machine is difficult to deform because the gantry and the stanchion are integrally cast and the rigidity is large. The worktable of the bare machine is movable. The guideway and the screw rod are produced by Hiwin, wherein the screw rod adopts C3-grade grinding ball screw rod. All bearings are imported bearings in pair and are matched with national well-known automatic lubricating devices. The stainless steel protective shield is provided in Y axis. All precision items shall strictly comply with the national standard before leaving factory. The appearance of bare machine shall be painted with required colors. The bare machine does not contain any electrical apparatuses.

Item	Requirement (unit) or specification	Remarks
Dimensions of worktop	450X320
Quantity-dimension*spacing of T-shaped trough of worktable	3-12*83
Distance from end surface of sliding plate of mainshaft to worktop	150-300
Vertical stroke (Z) of mainshaft	150
Lateral stroke (X) of mainshaft	400
Longitudinal stroke (Y) of worktable	300
Three-axis linear guideway	HGH20CAH	Hiwin
Three-axis ball screw rod	R20-05-0.008 C3-grade	Hiwin
Three-axis bearing	Angle-contacted P5-level bearings in pair	Japan
Mated aperture of mainshaft base	ф80
Torque of Recommended three-axis motor X/Y/Z	0.9、0.9、0.9Nm
Width of gantry	530
Maximum loading capacity of worktable	70Kg
Planeness of worktable	0.02
Verticality of Z axis on XY axis	0.015
Planeness of X axis and Y axis when moving	0.015
Positioning precision	0.01
Net weight of bare machine	900Kg
Outline dimension	930X920X1400