WINTER 2025

66THE DISTRIBUTOR’S

66THE DISTRIBUTOR’S LINKSPIROL INTERNATIONAL CORP.30 Rock Avenue, Danielson, CT 06239TEL 1-860-774-8571 FAX 1-860-774-2048 EMAIL info@spirol.com WEB www.spirol.comHOW TO MATE COMPRESSION LIMITERS & THREADEDINSERTS IN PLASTIC ASSEMBLIES by Christie Jones, Director of Marketing, Vice PresidentIn applications where the mating component is alsoplastic, Compression Limiters are necessary to preventthe creep or stress relaxation in the mating componentfrom reducing the frictional load in the threaded joint.Similar to Threaded Inserts, Compression Limitersare used to ensure bolted joint integrity in plasticassemblies. As the bolt is tightened to achieve therequired friction between threads, the plastic iscompressed. The Compression Limiter absorbs the forcegenerated during tightening of the bolt, and isolatesthe plastic from excessive compressive loads. Withoutthe Compression Limiter, plastic will creep resultingin the loosening and eventual failure of the joint. TheCompression Limiter ensures that the joint remainsintact throughout the life of the product.Compression LimitersIn order for the Compression Limiter to workproperly, it should abut the Insert so that the Insert,and not the plastic, carries the load. The ID of theCompression Limiter in the mating component must belarger than the outside diameter of the assembly screw,but smaller than the pilot or face diameter of the Insertto avoid “jack-out.”SPIROL offers three different styles of standardCompression Limiters, enabling the most cost effectivecomponent to be chosen for each particular assemblydepending on performance requirements and installationmethod.TECHNICAL ARTICLE CONTINUED ON PAGE 116

THE DISTRIBUTOR’S LINK 67SPIROL is thrilled toannounce the opening ofour newest branch in Johor,Malaysia. This new divisionrepresents a significantmilestone in SPIROL’sinfrastructure developmentand supply capability in theAsia Pacific region. This newstate-of-the-art sales andservice location will supportSPIROL’s commitment toproviding top-tier local servicesto our clients worldwide.The new branch, set tobe fully operational fromSeptember 1, 2024, willservice SPIROL’s customersin South-East Asia, SouthAsia and North Asia -including India, North Asia,South Korea, Japan andAustralasia. Our dedicatedteam in Malaysia look forwardproviding our customerswith the same World ClassCustomer Service on whichSPIROL prides itself.The Shanghai, Chinabranch will continue to manageand supply all businesswithin mainland China, witha focus on further optimizingour approach for China. Webelieve this to be the optimalsupply model for the AsiaPacific region moving forward.We are excited toembark on this new chapterand remain committed todelivering excellence for ourAsia Pacific customers.For more information,contact SPIROL Malaysia atUnit 02-02, Level-2, CIMBLeadership Academy, No 3Jalan Medini Utara 1, MediniIskandar, Iskandar Puteri,79200, Johor, Malaysia.On June 27, 2024, SPIROLhosted a webinar on “The Benefitsof Coiled Spring Pins in DynamicAssemblies”During the informative session,SPIROL’s experts in fastening,joining and assembly reviewed theconcepts of dynamic applications,typical examples, and commonpinning solutions. Benefits anddrawbacks of each solution werecovered in depth and generaldesign guidelines for maximizingservice life in dynamic assemblieswere discussed.Topics covered in the Webinarinclude:¤ Definitions and terms used indynamic applications¤ How fatigue life is estimated¤ Examples of dynamicapplications¤ The pros and cons of usingdifferent pins in dynamic loading¤ Pin materials and their effecton endurance¤ Associated best practicesfor maximizing service life of theapplicationA recording of the Webinaris now available below or onSPIROL’s YouTube channel.For more information contactSPIROL at Tel: 1-860-774-8571,Email: info@spirol.com online atwww.spirol.com.