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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.

Function

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Retaining Pin
Hinge Pin
Replacement for Machined Pins
Alignment / Locating
Threaded Inserts for Plastics
Replacement for Screws
Compression Limiter
Insert Installation
Pin Installation
Replacement for Rivet
Safety Spring
Reinforcement / Support
Shaft & Gear / Shaft & Hub
Replacement for Cut Tubing
Spacer
Replacement for e-clips
Miniature Part Installation
Plastic Reinforcement
Compression Limiter Installation
Spring
Coiled Spring Pins
Drilling and Pinning
Vibratory Feeding
Cam Follower
Shaft & Gear/Shaft & Hub
Force Monitoring
Link
Shims
Torque Limiter

Applicable Products

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Coiled Spring Pins
Solid Pins
Light Duty Coiled Spring Pins
Threaded Inserts for Plastics
Installation Technology for Pins/Alignment Dowels/Press-In Inserts
Disc Springs
Compression Limiters
Heat Insert Drivers
Spacers
Alignment Dowels / Bushings
BP100 Dual Opposing Barb Pin
Press-N-Lok™ Pin
LP500 Latch Pins for Plastics
Precision Machined Nut
GD100 Ground Hollow Dowel
FH400 Barbed Solid Pins
DP100 Straight Solid Pin
Twist-Lok™ Pins
Precision Shims
Additional Spacer & Rolled Tubular Options
Self-Tapping Insert Drivers
Heat Insert Driver
Compression Limiters Installation Technology
Installation Technology for Pins Alignment Dowels & Press-In Inserts
Series 550 Cosmetic Coiled Pins
Vibratory Feed Systems
Light Duty Coiled Spring Pin
Compression Limiter Installation Technology
Garage Door Spacers
CS100 Conveyor Spacers

Market/Industry

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Automotive
Plastic Molding
Industrial
Durable Consumer Products
Agriculture/Heavy Equipment
Medical
Cosmetic
Aerospace / Defense

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 instrument.…

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A manufacturer of agricultural attachments was experiencing fatigue failures with their current use of a Slotted Spring Pin in a hay rake assembly. The pin was used to retain the hub to the shaft. The…

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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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Eight (8) screws were used to secure the two outer housing components of a plastic charging handle for electric vehicles. The manufacturer decided they no longer wanted the device to be serviceable due…

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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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The customer was looking for a pin to be used in a hydraulic poppet valve. The pin is used to retain a check ball from falling out of the valve as a result of preset hydraulic pressure and flow. While…

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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 pin…

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The designers of a shift linkage assembly for a manual transmission required a fastener to pin a shaft in a knuckle. The pin had to allow articulation of shaft and knuckle without introducing clearance…

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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 water…

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Frames for truss systems are designed to support stadium lighting and sound equipment, as well as bleacher seating systems. Many venues are multi-use, so oftentimes these systems are assembled and disassembled…

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An industrial pump manufacturer approached SPIROL with a new heavy duty marine application. In a smaller version pump, the company currently uses a heavy duty .187” diameter Coiled Pin to attach an aluminum…

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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 Limiters…

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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 rotate…

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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 part. When…

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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 particular…

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A lower engine block, sometimes referred to as a ladder frame or bedplate assembly, is designed to integrate the main bearing caps into a solid cast body. Most OEMs feel that producing an engine in a two-piece…

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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 blades…

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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 lever.…

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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 mating…

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A company was using a Semi-Tubular Rivet as a hinge pin in an automotive door handle application. Their installation process consisted of installing the Rivet used to join the bracket to the handle assembly,…

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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 components…

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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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A leading manufacturer of hydraulic pumps required a method to permanently affix various sized gears to shafts. The gears were bronze, and the shafts were 400 series stainless steel. After press fitting…

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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 ultrasonic…

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As one of the leading manufacturers of miniature pins (pins with a diameter less than 1.5mm), SPIROL has developed a high level of expertise installing these pins automatically. Manual installation of…

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A leading door and window manufacturer approached SPIROL with a design improvement request. The company manufactures doors and windows that utilize traditional vinyl window trim commonly seen in metal…

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An innovative manufacturer of hand-held construction tools approached SPIROL for assistance on securing a plastic cover to one of their tools. The original design utilized (3) self-tapping Phillips-head…

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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 pin.…

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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 two…

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The medical device manufacturer required a fastener to secure two halves of a plastic housing and allow for efficient assembly cycle times.  

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A customer was originally using a piece of cut tubing as a spacer used to support two plates in an automotive front end assembly. The tubing was cut to the proper length, placed between the two plates…

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A conveyor manufacturer approached SPIROL to help resolve an issue with their assembly. They were driven by cost to use plastic tubing rather than steel Spacers to separate the skate wheel rollers from…

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An OEM was manufacturing a complete assembly of a garage door hinge. They were using press technology to perform the stamping and another to create the butted seam Spacer. This type of manufacturing allowed…

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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 after…

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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, and…

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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 on…

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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 requested…

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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 automotive industry historically has used machined Solid Dowels to align various engine components to the block. The sole purpose of the dowels is to provide finished assembly alignment to the engine…

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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 assembly…

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The customer is currently using a standard duty Coiled Spring Pin for use as a hinge pin in a circular saw blade guard application. An engineering review was generated to review this application because…

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A metal pin is used as a hinge pin in a plastic cosmetic case.  

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The manufacturer of a flexible head ratchet wrench required an alternative to a Grooved Pin.  

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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 connected…

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A medical device manufacturer was using a Swiss style CNC-machined Knurled Solid Pin in a surgical device. This specific device is used as a “grasper” to allow the surgeon to operate through a laparoscopic…

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A manufacturer of medical equipment required an alternative to a Slotted Spring Pin for use in assembling a beam scale.  

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A manufacturer of molded plastic spray bottle nozzles intended for restaurant applications was looking for a way to “tamper proof” their adjustable spray tip.  If the users were able to adjust the…

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A manufacturer of a pneumatic nail gun was experiencing difficulties installing a pin used to hold a steel shaft to an aluminum piston. The steel shaft acts as the nail driver when the gun is actuated.  

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An industry leader in fuel systems designed a new evaporation canister, part of a vehicle’s emissions system. The assembly was composed of plastic, with a chamber where gasoline fumes are filtered through…

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A manufacturer of small engines required a cost effective method to align a crankshaft cover to an aluminum engine block.  

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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. To…

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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 accommodate…

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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. The customer was looking at changing these brackets to plastic as a…

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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 Compression…

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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 passes…

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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 hangers,…

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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 pull…

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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 require…

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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 bushing…

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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 adjustment! SPIROL…

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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 failure…

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Application: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.…

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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 to…

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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 resulting…

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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 important…

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A valve train systems manufacturer was using a hollow, machined rod in the assembly of a valve assembly. This component makes the link between the plunger and the spool. These are the components that allow…

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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 process,…

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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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A leading latch manufacturer approached SPIROL with a design / production concern regarding a new assembly.  

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A Solid Dowel Pin was used to fasten a stainless steel trigger plate to a plastic yoke subassembly within a surgical stapler. This functioned as a hinge to actuate the stapler as the surgeon pulled the…

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This customer is currently using a Coiled Spring Pin to retain a pinion shaft in a differential carrier. The Coiled Pin does not experience any significant shear loading since the shaft functions basically…

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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…

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An automotive manufacturer was designing a Mode 2 charging cable assembly for electric vehicles. The manufacturer wanted permanent water sealing protection for the In-Cable Control Box (ICCB) which facilitates…

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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 customer…

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A leading manufacturer of forklifts contacted SPIROL to help find a solution for an installation issue they were experiencing with Slotted Spring Pins used to retain two cast iron and steel components…

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The pin is used in an automotive steering column assembly to act as a hinge retaining the aluminium housing and gear motor.  

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DEWALT, a subsidiary of Stanley Black and Decker, is a brand with a reputation for providing high quality professional power tools, contractor tools and accessories. DEWALT’s lead design engineer for…

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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 utilized…

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A world class rubber molding house manufactures a rubber damper used as a muffler hanger. The hanger attaches the muffler to the under carriage of the vehicle. Spacers or Bushings are required to prevent…

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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 crane…

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