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Resources
Application Stories
SPIROL products are used in literally thousands of applications spanning virtually all markets where component parts are assembled…from miniature pins used in eyeglasses to shims used in earthmoving equipment and jumbo jets…in quantities ranging from one piece to multi-millions. Our parts have even gone to the moon!
We understand the specifics and intricacies of each market segment and adapt our capabilities to meet those needs.
Below is a sampling of SPIROL’s Application Engineering capabilities.
A manufacturer approached SPIROL for assistance on designing a stack of Disc Springs that would reliably activate an overload mechanism for a warehouse crane. The manufacturer’s design allowed the cra...
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The manufacturer was using an 8 x 45 standard duty phosphate coated coiled pin from a competitor. The customer was experiencing high levels of failures and scrap during the installation process due to...
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The lead engineer at a prominent hand and power tool company contacted SPIROL for help determining the best Disc Spring design for a new lightweight, compact, and portable Heavy Duty Right Angle Drill...
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The customer manufactures and distributes quality kitchen utensils. The lemon-lime juicer they make is composed of two enamel covered zinc die castings that are pinned together. The original design ut...
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An automotive component manufacturer was using cut tubing to prevent damage to a rubber damper used to attach a muffler to the undercarriage of a vehicle. During the process of cutting the tubing to t...
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A customer contacted SPIROL International with an axle-alignment problem that they were having with a wheel chair. The application was a solid axle passing through the center hub of a wheel. The axles...
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A manufacturer of switch products requested that SPIROL manufacture a custom Hex Panel Nut for their European market. This large, special Machined Nut had a 15mm wrench size and a M13 thread. The cust...
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The manufacturer/assembler of an automotive transmission valve body contacted SPIROL to evaluate their application. The valve body was designed to utilize several pins to secure the solenoids within t...
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To retain a pinion shaft in a differential carrier, a Solid Pin is commonly used in precision drilled and reamed holes. Solid Pins require a very strict diameter tolerance for a controlled interferenc...
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A plastic storage case had been designed with a latch/hinge assembly requiring two pins. One pin was used to connect the entire latch assembly to the case lid, and the other pin was used as a hinge pi...
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The designers of a shift linkage assembly for a manual transmission required a pin to fasten a shaft within a knuckle. The pin must allow articulation of the shaft and knuckle without introducing clea...
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SPIROL 420 Stainless Steel Coiled Spring Pins are used in pressure relief valves to secure lift levers relative to pull rods. These valves are used to regulate temperature and pressure in residential...
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A manufacturer of automotive ignition coils approached SPIROL seeking a cost effective alternative to a machined brass Compression Limiter. Preferred method of installation was molded in. Compression...
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A pump and valve manufacturer contacted SPIROL to help solve an issue with their filter pump. The filter pump consisted of a cover fixed to the pump housing. With internal pressure and applied torque,...
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Braking systems for Off Highway equipment are commonly designed to be hydraulically actuated. In most cases, braking occurs when pressurized fluid compresses stationary plates against plates that rota...
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Pick-off spindles in CNC screw machines are designed to hold a part as it is cut to length and then finished. The spindle uses a collet to release the part when it is complete and then clinch a new pa...
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An OEM was using a 16mm OD Ground Solid Dowel to locate the transmission to the back of the engine. Specified tolerance for alignment had the components be within 20 microns of alignment. This particu...
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A leading automotive manufacturer approached SPIROL for a cost-effective solution to precision align the lower engine block to the primary engine block.
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The arrowhead uses a pin as a pivot for two folding blades in the center of the assembly. The application requirements are such that the pivot pin must not bend under impact, and it must allow the bla...
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The manufacturer of a marine shift lever knob was experiencing quality issues due to stripped threads. The plastic knob had been designed with an internal thread used to mount it to the mating shift l...
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A manufacturer of automotive plastic electronic modules was experiencing installation problems with a competitor’s Insert, as well as insufficient performance of the Insert during assembly of the mati...
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An automotive door handle manufacturer approached SPIROL to recommend a hinge pin that would eliminate the BSR (buzz, squeak & rattle) caused by a semi-tubular rivet they were using in their asse...
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A major manufacturer of surgical tools required a means to automatically install a miniature pin. Miniature pins (i.e. less than ø2 mm OD and 10 mm in length) are very difficult to manipulate by hand.
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An OEM Manufacturer of molded plastic electrical conduit components was previously installing brass inserts of their own design, into several of their various products. Equipment used: A single horn u...
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SPIROL was approached by a surgical tool manufacturer to review an assembly that required a 0.8mm (.031”) diameter stainless steel Solid Pin to affix a nylon cylinder to a shaft. The assembly consiste...
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A major office furniture company designs and manufactures a wide range of office chairs, many with pivoting back rests. The back rest used a free fit machined pin retained with an e-clip as the hinge...
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Two different oil pump models were assembled at the same manufacturing location. Due to design constraints, the manufacturer was unable to standardize on a single Solid Pin, and therefore they used tw...
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An automotive chassis manufacturer was originally using cut tubing as a spacer to support two plates in an automotive front end assembly. The tubing was cut to the proper length, placed between the tw...
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A conveyor manufacturer approached SPIROL to help resolve an issue with their conveyor assembly. They were driven by cost to use plastic tubing rather than metal Spacers to separate the skate wheel ro...
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An OEM manufacturing a complete garage door hinge assembly was using press technology to perform the stamping and another to create the butted seam Spacer. Press technology reached production rates of...
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An assembler wanted to automatically feed and orient synthetic corks at a feed rate of 200 parts per minute. These corks are very difficult to feed due to the sticky film that remains on the surface a...
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The manufacturer of an automotive accelerator pedal wished to reduce the total cost of their assembly by replacing a machined Solid Pin retained with a Push Nut. The Solid Pin functioned as the axle o...
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The customer was using a staked tubular rivet as a hinge pin for the handle and pawl in an automotive door handle application. The customer was experiencing problems with BSR (buzz, squeak and rattle)...
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The customer was using a semi-tubular rivet as a hinge pin in their glove compartment handle application. They were experiencing major problems during the crimping operation of the rivet, and requeste...
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An intake manifold had been designed with four flow control valves and a stop, each affixed to a common shaft with two Slotted Pins. The valves are cast magnesium and the stop is plastic. The customer...
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The manufacturer/assembler of an automotive valve body assembly wished to locate the upper and lower valve bodies during sub-assembly. Their intent was also to utilize locating pins during final assem...
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Two Solid Pins were used as hinge pins in a styrene case. The Solid Pins were causing squeaking in the styrene plastic case. The overriding weakness of the Solid Pins was that they relied on deformati...
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The manufacturer of hand tools was experiencing retention issues with a Grooved Pin used as pivot / axle within a flex head ratchet wrench. The wrench carried a lifetime warranty, and the manufacturer...
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The customer was using a Solid Pin to connect the push rod and the pedal in the brake treadle application. The component is a pedal attached to a spring actuating mechanism assembly. The pedal is conn...
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A manufacturer of medical equipment required an alternative to a Slotted Spring Pin for use in assembling a beam scale. The Slotted Spring Pin caused difficulty with alignment, high insertion force, a...
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A manufacturer of power tools was experiencing issues installing a Composite Pin into their pneumatic nail gun. They were using a Slotted Pin within a Slotted Pin (aka Composite Pin) to meet the high...
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A manufacturer of small engines required a cost effective method to align a crankshaft cover to an aluminum engine block.The manufacturer used a press-fit Ground Dowel to align the crankshaft cover to...
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An alternate solution to a brass rivet was required that would reduce piece price, increase efficiency, and eliminate potential quality issues associated with riveting.
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An automotive molder was molding and assembling an Oil Level Dipstick consisting of a blade and finger ring. Their objective was to be able to quickly and efficiently assemble 5,000 units per month. T...
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The manufacturer of a pick-up pipe for an automotive oil pump required a Compression Limiter to reinforce their plastic component. Due to molding concerns total hole tolerance could not be reduced to...
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A fuel injection systems manufacturer had incorporated the use of two steel brackets to clamp the fuel rail to the top of the engine. As a cost-savings endeavor, they considered using plastic brackets...
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Over the past few years, plastic Intake Manifolds have gradually started to replace cast aluminum. Due to the fact that the plastic intake must be bolted / fastened to the engine, the use of a Compres...
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A manufacturer of plastic automotive engine components was experiencing problems during the installation of a specialty vacuum fitting. The area around the mounting hole through which an M5 bolt passe...
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As mandated by the ASME code for pressure piping, proper design and installation is critical for the performance and safety of piping systems. Industrial pipe systems are primarily supported by rod ha...
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Traditional turret punch press tool designs utilize coil springs (die springs) to facilitate the stripping mechanism of a die. Rather than using a ram to push the punch through the sheet metal and pul...
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Alignment of components is critical in various powertrain and hydraulic systems. Traditionally Solid OD Ground Dowels have been used to provide the necessary alignment. However, these Ground Dowels re...
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Customer is using two solid wall ground dowels in the assembly of an oil pump. The bushings are used to align the two side covers to the body of the pump. An M6 bolt then passes through the ID of the...
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SPIROL International Corporation offers a very cost effective solution for companies to use a single tip machine for a multiple Insert application, without the need for individual Insert depth adjustm...
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The customer was using a thread cutting screw to fasten a map rack to the safety bar of a ski lift. The application requires seasonal removal and the repeated cycle of installation and removal led to...
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A specialized molder of chrome plated plastic automobile components wanted to improve their production efficiency, and enhance the quality of their final product in a very competitive environment. The...
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A molder of components used in high voltage controls was experiencing difficulty installing brass Inserts into their plastic parts. They required high performance Inserts with a quality installation t...
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A molder of plastic yo-yos wanted to introduce a higher quality product to the market. By incorporating threaded Brass Inserts into each half of the yo-yo, a higher quality joint would be created resu...
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A manufacturer of high quality gears was experiencing difficulty installing a locator pin in a critical area. The pin also tended to work its way out of the assembly during use. It was vitally importa...
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A die casting manufacturer is engaged in the production of an all-aluminum hacksaw frame. To affix the cutting blade to the frame, pins are required at each end; one in a fixed position, and the other...
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A leading latch manufacturer approached SPIROL with a design / production concern regarding a new assembly.The manufacturer designed a compartment door latch housing to mate with a mounting plate whic...
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A manufacturer in the medical industry approached SPIROL in their quest to reduce costs and simplify the assembly process of a stack of Disc Springs used in a high-speed torque limiter surgical instru...
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A manufacturer of agricultural attachments was experiencing fatigue failures with their use of a Slotted Spring Pin in a hay rake assembly. The pin was used to retain the hub to the shaft. The agricul...
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A manufacturer of diesel fuel assemblies required a pin that had higher shear strength than the 3-coil Coiled Pin that was being used in order to withstand the torque generated during disassembly.
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An automotive transmission shifter housing was initially designed to be attached to a floor mounted base by using a machined Solid Pin. The manufacturer recognized that the Solid Pin was expensive, an...
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A plastic molder of automotive wiring harness channels had been faced with the task of installing multiple Compression Limiters into irregular shaped components. In total, there were four different co...
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A leading manufacturer of hydraulic pumps required a method to permanently affix various sized gears to shafts. After press fitting the gears into position, they would drill a hole partially through t...
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A military ground assault vehicle manufacturer approached SPIROL to provide quick delivery of adjustable Shim packs for spacing of armored vehicle door hinges. The spacing is critical to the welding p...
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A manufacturer of hand and power tools requested SPIROL’s assistance to alleviate high insertion forces they were experiencing with the current hinge pin in their circular saw blade.
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A manufacturer of automotive oil pump assemblies who traditionally used Solid Dowels for alignment requested SPIROL’s engineering support to reduce cost, total assembly weight and installation forces.
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A leading manufacturer of forklifts contacted SPIROL to help resolve an issue they were experiencing with interlocked Slotted Spring Pins used to retain two cast iron and steel components together. In...
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A pump designer experienced shearing of a pin that attached an aluminum shaft to a powdered metal rotor in a heavy duty marine pump. They wanted to use one pin in both a heavy duty and smaller sized p...
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A manufacturer of molded plastic spray bottle nozzles used in restaurants requested SPIROL’s help to “tamperproof” their adjustable spray tip so that the spray volume could not be adjusted resulting i...
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A medical device manufacturer requested SPIROL’s assistance to eliminate high insertion forces, pin bending, component damage and generation of metallic debris that they experienced with a CNC-machine...
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A manufacturer of truss systems used for stage lighting and stadium seating approached SPIROL for help selecting the right fastener to retain extruded aluminum tubing to the couplers. The fastener wou...
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A manufacturer of fuel systems requested SPIROL’s help in reinforcing the hose fitting area of their new plastic evaporation canister. The reinforcing component had to be self-retaining, resista...
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A leading manufacturer of hydraulic poppet valves request support from SPIROL Engineering to recommend a pin to retain a check ball within a valve assembly subject to longitudinal shock forces.
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A global manufacturer of safety equipment was producing a line of molded plastic safety eyewear that specified Phillips head screws as the hinge pivots in the folding arms. Installing the screws was a...
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A leading medical device manufacturer approached SPIROL for assistance in designing a self-retaining trigger pin that eliminated cracking of the plastic yoke within the surgical stapler.
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