JB/T 3338-2013液压件圆柱螺旋压缩弹簧特性试验：指定高度或变形量下的负荷，弹簧变形量应在试验负荷下变形量的20％～80％之间。测量弹簧刚度时，弹簧变形量应在试验负荷下变形量的30％～70％之间。jn-syj.com；圆柱螺旋压缩弹簧永久变形试验，将弹簧用试验负荷压缩3次后，其永久变形应不大于自由高度H0的0.25％。

JB/T 3338-2013液压件圆柱螺旋压缩弹簧技术条件，规定了液压件圆柱螺旋弹簧永久变形试验、指定高度下的负荷测定、指定变形量下的负荷测试、弹簧刚度测定。JB/T 3338-2013适用于弹簧材料直径≤16mm的液压元件用圆柱螺旋压缩弹簧。200N液压件弹簧试验机；HRJ Spring Tester；10N～100kN弹簧拉压试验机；100kN～300kN弹簧拉压试验机；300kN～1000kN弹簧压力试验机；50kN弹簧拉伸冲击试验机；50kN多工位弹簧疲劳试验机；0.5N.m～100N.m液压弹簧扭力试验机；100N.m～3000N.m弹簧扭转疲劳试验机；2kN油门踏板弹簧试验机；3kN转向器弹簧试验机；30kN液压截止阀弹簧试验机；300kN弹簧刚度试验机；500N喷油器弹簧试验机；jn-syj.com；50kN减震器弹簧试验机；500kN车辆弹簧试验机；30kN油封弹簧试验机；100kN液压泵缸体弹簧试验机；50kN柱塞泵弹簧试验机；200kN马达弹簧试验机；300N压滤机弹簧试验机；5kN刹车弹簧试验机；

ISO 16840-2；ISO 16840-3；ISO 7176-15；ISO 7176-26；HRJ Spring Tester；ISO 8458-2；ISO 10069；JIS E 4206；EN 13298；GB/T18029.15-2008；GB/T18029.26-2014；GB/T30661.2-2014；JT/T460；QC/T805-2008；QC/T831-2010；QC/T844-2011；HRJ Spring Tests；GB/T30661.3-2015；JB/T7796-2017；JB/T12792-2015；JB/T12793-2015；jn-syj.com；GB/T1222-2016；GB/T33164.2-2016；GB/T2940；JB/T10416；JB/T10417；GB/T1358；JB/T3338-2013；GB/T1973.1；GB/T1973.2；GB/T1973.3；GB/T4357；YB/T5063；YB/T5310；TB/T2211；GB/T1805；JB/T12791-2016；JB/T6655-2013；JB/T7944-2013；

Hydranlic Cylindrically Helical Compression Spring Tester；Technical specifications；Piston pump Spring Compression Tester；Piston pump Spring Tester；HRJ Spring Tests；Water Hydraulic Axial Piston Pump Spring；Piston pump mainly by the piston in the pump cylinder for reciprocating motion to breathe and remove the liquid；Driven by Pressure and Servo Motor Tester；Closed-cycle hydraulic piston pump；Spring Tensile Tester；Spring Compression Tester；Mould Coil Spring Tester；Tools for pressing；HRJ Spring Tests；Compression springs with rectangular section；Spring Fatigue Testing Machine；Spring Torsion Fatigue Tester；Spring Stiffness Tester；Spring Transverse Stiffness Tester；Housing dimensions and colour coding；High Temperature Spring Fatigue Tester；Gas Spring Fatigue Tester；High Temperature Spring Tester；Low Temperature Spring Fatigue Tester；Two-position Spring Tester；Helical Spring Compression Tester；Coil Spring Fatigue Tester；jn-syj.com；Spring Transverse Load Tester；Side Ripple Spring；Battery Spring Tester；Sofa Spring Tester；Circuit-breaker Spring Tester；Air spring Stiffness Tester；Bow-spring Casing Centralizers Tester；Spring bumper Tester；Helical Spring Compression Tester；Automobile Leaf Spring Compression Tester；Horizontal Spring Torsion Tester；Table top Spring Tester；Vertical Spring Tester；Torsion-Bar Spring Fatigue Tester；Switch Spring Tester；Clock spring Tester；HRJ Spring Tests；Hydraulic Spring Tester；Seal element Spring Tester；China Spring Tester；Asia Spring Tester；World Spring Tester；Various Testing Machine；Laboratory Equipment；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；HRJ Testing Machine；

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