Main Technical Parameters and Design
1. Wide-profile design: Its rail width (e.g., HGW25, HGW35, HGW45) is typically greater than the HGH series of the same height level, which is the physical basis for its load capacity.
2. Reinforced ball system: Uses a greater number of ball rows and a reinforced recirculation system to ensure smooth ball circulation and even stress distribution under heavy loads.
3. Heavy-duty sealing: Equipped with reinforced end seals and bottom seals, and may use metal scrapers to withstand larger amounts of debris and dust in heavy-duty environments.
4. Preload and accuracy: Offers medium preload (C2) and heavy preload (C3) as standard or recommended options to maximize rigidity. Accuracy grades range from high precision (H) to ultra-precision (UP).
Applications
The HGW-CC/HC series is the ideal choice for the following heavy-duty, high-precision, and cutting-edge equipment:
Heavy-duty CNC machine tools: Large gantry machining centers, five-axis machining centers, and the gantry moving axis (X-axis) and spindle head vertical axis (Z-axis) of heavy-duty vertical lathes.
Heavy industrial automation: Large stamping automation lines, heavy-duty handling modules in automotive welding production lines.
Special equipment: Aerospace structural component processing equipment, large wind turbine blade mold machining centers, heavy-duty laser cutting platforms.
Precision measurement: Large coordinate measuring machines, moving guides for heavy-duty component inspection platforms. The High Assembly HGW-CC/HC Series Linear Guideway represents the pinnacle of linear guidance technology, pushing the boundaries towards the integration of heavy load capacity, high rigidity, and high precision. It's not merely an increase in size, but a comprehensive leap in mechanical performance. Choosing the HGW series means you are facing demanding industrial challenges and equipping your heavy-duty equipment with a top-tier motion framework capable of handling future upgrades and extreme production requirements. It is the core foundation for equipment manufacturers to build world-class heavy-duty processing and manufacturing platforms.
Parameters
Model No. |
Dimensions of Assembly (mm) |
Dimensions of Block (mm) |
Dimensions of Rail (mm) |
Mounting Bolt for Rail |
Basic Dynamic Load Rating |
Basic Static Load Rating |
Static Rated Moment (kgf.m) |
Weight |
| H |
H1 |
N |
W |
B |
B1 |
C |
L1 |
L |
K1 |
G |
M |
T |
T1 |
H2 |
H3 |
WR |
HR |
D |
h |
d |
P |
E |
(mm) |
C(kN) |
C0(kN) |
MR kN-m |
Mp kN-m |
MY kN-m |
block kg |
Rail kg/m |
| 24 |
4.3 |
16 |
47 |
38 |
4.5 |
30 |
39.5 |
60.5 |
8 |
5.3 |
M5 |
6 |
8.9 |
3.95 |
3.7 |
15 |
15 |
7.5 |
5.3 |
4.5 |
60 |
20 |
M4×16 |
11.38 |
16.97 |
0.12 |
0.10 |
0.10 |
0.17 |
1.45 |
| HGW20CC |
30 |
4.6 |
21.5 |
63 |
53 |
5 |
40 |
50.5 |
76.7 |
10.25 |
12 |
M6 |
8 |
10 |
6 |
6 |
20 |
17.5 |
9.5 |
8.5 |
6 |
60 |
20 |
M5×16 |
17.75 |
27.76 |
0.27 |
0.20 |
0.20 |
0.40 |
2.21 |
| HGW20HC |
65.2 |
91.4 |
17.6 |
21.18 |
35.90 |
0.35 |
0.35 |
0.35 |
0.52 |
| HGW25CC |
36 |
5.5 |
23.5 |
70 |
57 |
6.5 |
45 |
58 |
84 |
10.7 |
12 |
M8 |
8 |
14 |
6 |
5 |
23 |
22 |
11 |
9 |
7 |
60 |
20 |
M6×20 |
26.48 |
36.49 |
0.42 |
0.33 |
0.33 |
0.59 |
3.21 |
| HGW25HC |
78.6 |
104.6 |
21 |
32.75 |
49.44 |
0.56 |
0.57 |
0.57 |
0.80 |
| HGW30CC |
42 |
6 |
31 |
90 |
72 |
9 |
52 |
70 |
98.4 |
14.25 |
12 |
M10 |
8.5 |
16 |
6.5 |
10.8 |
28 |
26 |
14 |
12 |
9 |
80 |
20 |
M8×25 |
38.74 |
52.19 |
0.66 |
0.53 |
0.53 |
1.09 |
4.47 |
| HGW30HC |
93 |
121.4 |
25.75 |
47.27 |
69.16 |
0.88 |
0.92 |
0.92 |
1.44 |
| HGW35CC |
48 |
7.5 |
33 |
100 |
82 |
9 |
62 |
80 |
112.4 |
14.6 |
12 |
M10 |
10.1 |
18 |
9 |
12.6 |
34 |
29 |
14 |
12 |
9 |
80 |
20 |
M8×25 |
49.52 |
69.16 |
1.16 |
0.81 |
0.81 |
1.56 |
6.30 |
| HGW35HC |
105.8 |
138.2 |
27.5 |
60.21 |
91.63 |
1.54 |
1.40 |
1.40 |
2.06 |
| HGW45CC |
60 |
9.5 |
37.5 |
120 |
100 |
10 |
80 |
97 |
137.4 |
13 |
12.9 |
M12 |
15.1 |
22 |
8.5 |
20.5 |
45 |
38 |
20 |
17 |
14 |
105 |
22.5 |
M12×35 |
77.57 |
102.71 |
1.98 |
1.55 |
1.55 |
2.79 |
10.41 |
| HGW45HC |
128.8 |
169.2 |
28.9 |
94.54 |
136.46 |
2.63 |
2.68 |
2.68 |
3.69 |
| HGW55CC |
70 |
13 |
43.5 |
140 |
116 |
12 |
95 |
117.7 |
166.7 |
17.35 |
12.9 |
M14 |
17.5 |
26.5 |
12 |
19 |
53 |
44 |
23 |
20 |
16 |
120 |
30 |
M14×45 |
114.44 |
148.33 |
3.69 |
2.64 |
2.64 |
4.52 |
15.08 |
| HGW55HC |
155.8 |
204.8 |
36.4 |
139.35 |
196.20 |
4.88 |
4.57 |
4.57 |
5.96 |
| HGW65CC |
90 |
15 |
53.5 |
170 |
142 |
14 |
110 |
144.2 |
200.2 |
23.1 |
12.9 |
M16 |
25 |
37.5 |
15 |
15 |
63 |
53 |
26 |
22 |
18 |
150 |
35 |
M16×50 |
163.63 |
215.33 |
6.65 |
4.27 |
4.27 |
9.17 |
21.18 |
| HGW65HC |
203.6 |
259.6 |
52.8 |
208.36 |
303.13 |
9.38 |
7.38 |
7.38 |
12.89 |
Drawings

Supports Product Combination Selection
Production Capacity
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Cyclone Milling Machines
LWN160-6000mm Leistritz Cyclone milling machines imported directly from Germany, the ball screw shaft precision can be C3, C5, and C7 the max length can be 7000mm |
Rolled Thread CNC Machines
PR-40CNC Profiroll rolled thread ball screw machines imported directly from Germany the ball screw shaft precision can be C5, C7 -C10 |

|
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Rolled Thread CNC Machines
ST-20.2 and ST-347.7 rolled thread ball screw machines from TaiWan. The ball screw shaft precision can be C7 - C10 |
Ball Screw Assembly Workshop
We conduct nut assembly in a constant temperature workshop, all workers having decades of work experience and zero clearance between the screw and nut. |
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Ball Screw Assembly Workshop
One ball screw shaft matches one ball screw nut. Because each ball screw shaft has a very tiny different tolerance. There are dozens of different ball sizes for different screw shaft. Our ball screw shaft and nut can be interchanged with the Taiwan TBI ball screw shaft and nut very well. |
Linear Guideway Selection
Non-interchangeable type:

Note:
1.The roman numerals express a matched set of rails.
2.No symbol indicates standard protection (end seal and bottom seal)
ZZ:End seaL bottom sealand scraper
KK: Double seals, bottom seal and scraper
DD: Double seals and bottom seal
3.Block type HGL is the low profile design of HGH (square type), the assembled height is same as HGW (flange type) in same size.
Model Number of HG Rail:

Interchangeable type:

Linear Guideway Preload & Precision Instruction
Preload Classes
offers three classes of standard preload for various applications and conditions.
| Class |
Code |
Preload |
Condition |
Examples of Application |
| Light Preload |
ZO |
0~0.02C |
Certain load direction, low impact, low precision required |
Transportation devices, auto-packing machines, X-Y axis for general industrial machines, welding machines, welders |
| Medium Preload |
ZA |
0.05C~0.07C |
High precision required |
Machining centers,Z axis for general industrial machines, EDM,NC lathes, Precision X-Y tables, measuring equipment |
| Heavy Preload |
ZB |
0.10C~0.12C |
High rigidity required, with vibration and impact |
Machining centers, grinding machines,NC lathes,horizontal and vertical milling machines, Z axis of machine tools, Heavy cutting machines |
| Class |
Interchangeable Guideway |
Non-Interchangeable Guideway |
| Preload classes |
Z0,ZA |
Z0,ZA,ZB |
Besides the standard top mounting type, WANGONG also offers the bottom mounting type of rails to customers.
| Mounting from Top |
Mounting from bottom |
 |
 |
Acouracy Classes
Thp accuracy of HG series can be classified into normal (C), high (H), precision (P), super precision (SP), ultra precision (UP), five classes. Please choose the class by referring the accuracy of applied equipment.

Accuracy Standards
| Item |
HG-15,20 |
| Accuracy Classes |
Normal (C) |
High (H) |
Precision (P) |
| Dimensional tolerance of height H |
±0.1 |
±0.03 |
±0.015 |
| Dimensional tolerance of width N |
±0.1 |
±0.03 |
±0.015 |
| Variation of height H |
0.02 |
0.01 |
0.006 |
| Variation of width N |
0.02 |
0.01 |
0.006 |
| Running parallelism of block surface C to surface A |
See Table |
| Running parallelism of block surface D to surface B |
See Table |
| Item |
HG-25,30,35 |
| Accuracy Classes |
Normal (C) |
High (H) |
Precision (P) |
| Dimensional tolerance of height H |
±0.1 |
±0.04 |
±0.02 |
| Dimensional tolerance of width N |
±0.1 |
±0.04 |
±0.02 |
| Variation of height H |
0.02 |
0.015 |
0.007 |
| Variation of width N |
0.03 |
0.015 |
0.007 |
| Running parallelism of block surface C to surface A |
See Table |
| Running parallelism of block surface D to surface B |
See Table |
| Item |
HG-45,55 |
| Accuracy Classes |
Normal (C) |
High (H) |
Precision (P) |
| Dimensional tolerance of height H |
±0.1 |
±0.05 |
±0.025 |
| Dimensional tolerance of width N |
±0.1 |
±0.05 |
±0.025 |
| Variation of height H |
0.03 |
0.015 |
0.007 |
| Variation of width N |
0.03 |
0.02 |
0.01 |
| Running parallelism of block surface C to surface A |
See Table |
| Running parallelism of block surface D to surface B |
See Table |
Acouracy of Running Parallelism
| Rail Length (mm) |
Accuracy (μm) |
| C |
H |
P |
SP |
UP |
| 0~100 |
12 |
7 |
3 |
2 |
2 |
| 100~200 |
14 |
9 |
4 |
2 |
2 |
| 200~300 |
15 |
10 |
5 |
3 |
3 |
| 300~500 |
17 |
12 |
6 |
3 |
3 |
| 500~700 |
20 |
13 |
7 |
4 |
2 |
| 700~900 |
22 |
15 |
8 |
5 |
3 |
| 900~1,100 |
24 |
16 |
9 |
6 |
3 |
| 1,100~1,500 |
26 |
18 |
11 |
7 |
4 |
| 1,500~1,900 |
28 |
20 |
13 |
8 |
4 |
| 1,900~2,500 |
31 |
22 |
15 |
10 |
5 |
| 2,500~3,100 |
33 |
25 |
18 |
11 |
6 |
| 3,100~3,600 |
36 |
27 |
20 |
14 |
7 |
| 3,600~4,000 |
37 |
28 |
21 |
15 |
7 |