500kN主蒸汽安全阀弹簧荷载试验机测定弹簧轴向荷载、弹簧压缩变形量、实际弹簧高度，弹簧轴向荷载多点采集、多点荷载停留保持，自动绘制弹簧荷载-变形曲线、弹簧轴向荷载-挠度曲线、弹簧实际刚度-理论刚度曲线误差、自动计算弹簧线性误差。

500kN安全阀弹簧试验机荷载压盘＞550mm，测试弹簧高度＞1000mm；《安全阀安全技术监察规程》和《弹簧式安全阀在线校验技术规范》规定，为保证安全阀弹簧长期工作的稳定，安全阀弹簧制造单位应当进行弹簧荷载强压检测，应对安全阀弹簧进行逐件检测；HRJ Tester；500kN安全阀弹簧压力试验机；600kN安全阀弹簧试验机；800kN大力值弹簧试验机；1000kN大荷载弹簧试验机；600kN螺旋弹簧压力试验机；500kN钢制弹簧荷载试验机；700kN大直径弹簧试验机；弹簧安全系数测定。

Main Steam Safety Valve Spring Load Tester；Safety Valve Spring Compression Tester；High Load Spring Compression Tester；HRJ Tester；Steel Spring Load Tester；Steel Helical Spring Compression Tester；Hydraulic Spring Compression Tester；Hydraulic Helical Spring Tester；Automobile Leaf Spring Compression Tester；Spring Safe Factor Test；Spring Fatigue Test；Torsion Spring Durability Tester；Spring Ruggedness Tester；Seat Leaf Spring Torsion Fatigue Tester；Seat Torsion Spring Durability Tester；Seat Spring Ruggedness Test；HRJ Tester；Spring Load Testing Machine；Valve Spring Fatigue Tester；Clutch Diaphragm Spring Tester；Switch Spring Tester；Clock Spring Tester；Clock Spring Torsion Tester；Contact Spring Tester；Contact Spring Fatigue Tester；Chair Height Adjustment Gas Spring Tester；Oil Seal Spring Tester；Oil Seal Spring Joint Strength Test；Waveform Sleeve Compression Tester；Seal Spring Testing Machine；Large Diameter Seal Spring Tester；Seal Element Spring Tester；

Sealing Rings Spring Tester；Reciprocating Compressor Spring Test；HRJ Tester；Wiper Rings Spring Tester；Piston Pump Spring Tester；Piston Pump Spring Compression Tester；Hydraulic Axial Piston Pump Spring Tester；Cold Coil Conical Helical Spring Tester；Hermetic Compressor Spring Test；Hermetic Motor Spring Test；Bogie Coil Spring buffer Tester；Vibration Sieve Spring Load Tester；China Spring Tester；Asia Spring Tester；World Spring Tester；Various Spring Tests；Various Testing Machine；Laboratory Equipment；China Material Tests；Asia Material Tests；World Material Tests；Testing Machines Manufacturer；Mechanics Tester Manufacturer；Tester Service Center；Tester Fittings Supply Center；Test Accessories Design Manufacture Center；Special Test Accessories Center；Testing Machine Accessories；Material Tester Attachment；Material Tester Fixture；HengRuiJin Testing Machine；

济南恒瑞金试验机有限公司；弹簧检测仪器制造商；山东省力值硬度计量委员

（试验机服务中心）（试验机配件供应中心）（特殊夹具定制中心）