TOHATSU Corporation Tokyo Spring Manufacturing Co., Ltd. was established in 1924. TOHATSU's main products include round wire springs, standard high-strength springs for molds, and TOHATSU ISO standard springs. We have developed numerous products based on customer needs, and their excellent quality is highly regarded worldwide. TOHATSU Spring Compression Limit: Do not exceed the maximum compression limit. Exceeding it may cause the spring to shorten, reduce its lifespan, or even break. TOHATSU Spring Lifespan: TOHATSU springs are manufactured under strict process and quality control, with a lifespan of 1 million cycles at normal temperatures (below 40°C).

Specification Categories:

Compression Springs (Music Wire): LR, MR, AY, AR, AF, AL, AT, AM, AH, AB, NAL, NAM

Compression Springs (Stainless Steel): OV, OY, OR, OF, OL, OT, OM, OH, OB

Tension Springs (Music Wire): WWA, WWY, TWY, WWU, TWU, WWS, TWS, WWF, WWT, TWT, AFSP, BAFSP, DWS

Tension Springs (Stainless Steel): WUA, WUY, TUY, WUU, TUU, WUS, YUSS, WUT, TUT, OFSP, BOFSP, DUS

Japanese Standards: TF30-45 (Yellow), TL30-45 (Blue), TM30-45 (Red), TH30-45 (Green), TB30-45 (Brown), TD 447-250 (49-30-300-2570N), TE570-300 (73-47-300-4944N)

High Compression Springs: TR14.5-75 (Gray-White), TU14.5-75 (Light Blue), TY14.5-75 (Purple)

European Standards:TJL40-152 (Green),TJM40-152 (Blue),TJH40-152 (Red),TJB40-152 (Yellow)