19YRS
STAMPINGMASTERS ENTERPRISE CO., LTD.
886-3-4527557
886-3-4511072
No.20, Xinbeiyuan Rd., Zhongli Dist., Taoyuan City 320, Taiwan
www.tohatsu.com.tw

Products

Die spring
Die spring (ISO specification. Compression 30%)
TJH

Die spring (flat wire spring) is suitable for occasions with high load and very limited space, mainly used in stamping dies, various die-casting dies, injection dies and mechanical equipment with precise structure

How to use the mold spring
1. First calculate the maximum working stroke required by the spring.
2. When assembling the spring, it must be preloaded to make it have internal pressure, otherwise the life of the spring will be reduced. Generally, the preload is 3~5% of the total length.
3. The spring must have bolts and outer guide bushes.
4. When the punch is re-ground, the spring will increase the compression at this time. Please grind the gasket at the same time to keep the original compression.

Points for attention in the use of springs
1. The specifications of each spring are different, do not easily replace each other when using
2. The guide length of the spring refers to the length of the central axis of the spring and the depth of the installation hole. If the guide length is insufficient, the spring will bend or tilt under the force, which will lead to the early failure of the spring. When the spring stroke is guaranteed, the guide length is greater than 1/2 of the free length
4. The upper and lower mounting surfaces of the spring must be parallel to each other. Do not cut the spring or process the connector so that it cannot be flush with the end surface.
5. The old and new springs cannot be mixed together, which will cause the spring to bear uneven load.
6. Prevent iron filings, scraps and other debris from being mixed in the spring

Load calculation method
Load (N) = Spring constant (N/mm) × compression (mm)

Specification

產品資訊\Product Information
材質
Materials
顏色(電著塗裝)
Color (Electric painting)
使用溫度(ºC)
Operating temperature (ºC)
旋向
Winding
SWOSC-V
紅色
Red
-30~150
Right hand screw
尺寸圖\Dimensions
安裝孔徑與軸徑配合公差\Fitting tolerance table of mounting hole diameter and shaft diameter
鑽孔徑(DH) 螺栓徑(Dd)
H15(孔徑配合公差)
Hole Fit Tolerance
h15(軸徑配合公差)
shaft diameter fit tolerance
上限(+) 下限(-) 上限(+) 下限(-)
10 5 +0.58 -0 +0 -0.58
12.5 6.3 +0.7 -0 +0 -0.58
16 8 +0.7 -0 +0 -0.58
20 10 +0.84 -0 +0 -0.58
25 12.5 +0.84 -0 +0 -0.7
32 16 +1 -0 +0 -0.7
40 20 +1 -0 +0 -0.84
50 25 +1 -0 +0 -0.84
63 38 +1.2 -0 +0 -1
外觀公差\Appearance Tolerances
彈簧自由長公差表(±%)
Spring free length tolerance table (±%)
荷重(N±%)
Load (N±%)
25~64 76~115 127~305 ±10%
±3 ±2.5 ±2
規格表\Specification Table
品號
Product No.
鑽孔徑(DH) 螺栓徑(Dd) 自由長(Lo)
定數(N/mm)
Spring constant
最大壓縮量
Maximum compression
TJH10-025 10 5 25 26.7 8.5
TJH10-032 10 5 32 20.8 10.9
TJH10-038 10 5 38 17.5 13.2
TJH10-044 10 5 44 15.2 15.5
TJH10-051 10 5 51 13.1 18.2
TJH10-064 10 5 64 10.4 23.1
TJH10-076 10 5 76 8.8 27.6
TJH10-089 10 5 89 7.5 32.6
TJH10-102 10 5 102 6.5 37.6
TJH10-305 10 5 305 2.2 114.8
TJH12.5-025 12.5 6.3 25 44 8.2
TJH12.5-032 12.5 6.3 32 34.4 10.9
TJH12.5-038 12.5 6.3 38 28.9 13.2
TJH12.5-044 12.5 6.3 44 25 15.5
TJH12.5-051 12.5 6.3 51 21.6 17.8
TJH12.5-064 12.5 6.3 64 17.2 22.8
TJH12.5-076 12.5 6.3 76 14.5 27.4
TJH12.5-089 12.5 6.3 89 12.4 32.5
TJH12.5-102 12.5 6.3 102 10.8 37.1
TJH12.5-115 12.5 6.3 115 9.6 42.2
TJH12.5-305 12.5 6.3 305 3.6 114.1
TJH16-025 16 8 25 80 8.3
TJH16-032 16 8 32 62.5 10.8
TJH16-038 16 8 38 52.6 13.2
TJH16-044 16 8 44 45.5 15.7
TJH16-051 16 8 51 39.2 17.2
TJH16-064 16 8 64 31.3 22.8
TJH16-076 16 8 76 26.3 27
TJH16-089 16 8 89 22.5 32.3
TJH16-102 16 8 102 19.6 37.2
TJH16-115 16 8 115 17.4 42
TJH16-127 16 8 127 15.7 46.7
TJH16-305 16 8 305 6.6 112.1
TJH20-025 20 10 25 160 7.6
TJH20-032 20 10 32 125 10.1
TJH20-038 20 10 38 105.3 12.2
TJH20-044 20 10 44 90.9 13.7
TJH20-051 20 10 51 78.4 16.1
TJH20-064 20 10 64 62.5 20.7
TJH20-076 20 10 76 52.6 24.9
TJH20-089 20 10 89 44.9 29.5
TJH20-102 20 10 102 39.2 33.9
TJH20-115 20 10 115 34.8 38.3
TJH20-127 20 10 127 31.5 42.4
TJH20-139 20 10 139 28.8 46.6
TJH20-152 20 10 152 26.3 51
TJH20-178 20 10 178 22.5 59.9
TJH20-203 20 10 203 19.7 68.4
TJH20-305 20 10 305 13.1 103.6
TJH25-025 25 12.5 25 266.7 7.6
TJH25-032 25 12.5 32 208.3 10.1
TJH25-038 25 12.5 38 175.4 11.6
TJH25-044 25 12.5 44 151.5 13.4
TJH25-051 25 12.5 51 130.7 15.9
TJH25-064 25 12.5 64 104.2 20.5
TJH25-076 25 12.5 76 87.7 24.8
TJH25-089 25 12.5 89 74.9 29.4
TJH25-102 25 12.5 102 65.4 34
TJH25-115 25 12.5 115 58 38.6
TJH25-127 25 12.5 127 52.5 42.8
TJH25-139 25 12.5 139 48 47.1
TJH25-152 25 12.5 152 43.9 51.6
TJH25-178 25 12.5 178 37.5 60.9
TJH25-203 25 12.5 203 32.8 69.6
TJH25-229 25 12.5 229 29.1 78.7
TJH25-305 25 12.5 305 21.9 105.5
TJH32-038 32 16 38 298.2 12.5
TJH32-044 32 16 44 257.6 14.1
TJH32-051 32 16 51 222.2 17.2
TJH32-064 32 16 64 177.1 21.6
TJH32-076 32 16 76 149.1 26.7
TJH32-089 32 16 89 127.3 30.9
TJH32-102 32 16 102 111.1 32.4
TJH32-115 32 16 115 98.6 36.8
TJH32-127 32 16 127 89.2 40.6
TJH32-139 32 16 139 81.5 44.9
TJH32-152 32 16 152 74.6 49.8
TJH32-178 32 16 178 63.7 56.7
TJH32-203 32 16 203 55.8 66.5
TJH32-229 32 16 229 49.5 75.9
TJH32-254 32 16 254 44.6 84.1
TJH32-305 32 16 305 37.2 100.3
TJH40-051 40 20 51 326.8 15.8
TJH40-064 40 20 64 260.4 19.7
TJH40-076 40 20 76 219.3 24.1
TJH40-089 40 20 89 187.3 29.2
TJH40-102 40 20 102 163.4 34.3
TJH40-115 40 20 115 144.9 39.3
TJH40-127 40 20 127 131.2 44
TJH40-139 40 20 139 119.9 48.7
TJH40-152 40 20 152 109.6 54.1
TJH40-178 40 20 178 93.6 63.7
TJH40-203 40 20 203 82.1 73.1
TJH40-229 40 20 229 72.8 83.6
TJH40-254 40 20 254 65.6 92.9
TJH40-305 40 20 305 54.6 113
TJH50-064 50 25 64 390.6 19.5
TJH50-076 50 25 76 328.9 23.9
TJH50-089 50 25 89 280.9 29
TJH50-102 50 25 102 245.1 32
TJH50-115 50 25 115 217.4 36.9
TJH50-127 50 25 127 196.9 41.6
TJH50-139 50 25 139 179.9 46.2
TJH50-152 50 25 152 164.5 51.1
TJH50-178 50 25 178 140.4 60.9
TJH50-203 50 25 203 123.2 70.4
TJH50-229 50 25 229 109.2 80.3
TJH50-254 50 25 254 98.4 89.6
TJH50-305 50 25 305 82 109.4
TJH63-076 63 38 76 526.3 23
TJH63-089 63 38 89 449.4 27.3
TJH63-102 63 38 102 392.2 31.4
TJH63-115 63 38 115 347.8 36.7
TJH63-127 63 38 127 315 39.8
TJH63-152 63 38 152 263.2 49.4
TJH63-178 63 38 178 224.7 57.5
TJH63-203 63 38 203 197 68
TJH63-229 63 38 229 174.7 74.7
TJH63-254 63 38 254 157.5 83.6
TJH63-305 63 38 305 131.1 102.2
注意事項\Matters needing attention

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