Custom Load Pin Transducers

Custom Load Pin Transducers

Load pins are sometimes referred to as force sensing clevis pins, lifting pins, weight pins, force pins, or shear pins but they are all the same in that they are all strain gauge transducers that measure weight. Our load pins are custom designed to our customer’s requirements. Load pin will typically replace the sheave pin of a lifting device. Pin loading must be in one direction only or side loading will occur and reduce pin load accuracy. To this end, keeper plates are often employed to keep the force pin aligned properly.

Highlights

  • Shear load pins are very versatile and used in many tension load applications
  • Load pins can replace clevis pins
  • Load pins minimize or eliminate crane head space
  • Outputs include mV/V, 4-20mA, 0-10V, wireless
  • Load pin accuracy is <1% typical; 0.1% to 0.2% may be achieved with multi-point calibration
  • Load pins are susceptible to side loads so pin loading must be in one direction only
  • Load pins are custom engineered and manufactured to fit the load and support arrangement

Product Details

Product Details

Custom Load Pin Transducers

Meticulously crafted to meet individual customer requirements, these load pins serve as replacements for sheave pins in lifting devices, especially in the mining industry.

Primarily utilized in hoisting and tension load applications, they deliver reliable and precise measurements.

Ensuring unidirectional pin loading is crucial to avoid potential inaccuracies caused by side loading.

Frequent utilization of keeper plates maintains proper alignment, guaranteeing consistent and accurate results.

PRODUCT SPECIFICATIONS

Capacities

Available in any capacity (custom)

Typical Accuracy

<1%FS; 0.1% to 0.2%FS may be achieved with multi-point calibration

Safe Overload

150% safe overload (standard but customizable)

Ultimate Overload

300% (standard
up to 1000% (mining and safety)

Full Scale Output

1 mV/V nominal typical

Maximum Excitation

5 volts DC (standard, customizable to 10V)

Operating Temp

-40°C to +80°C (standard)

Compensated Temp

-10°C to +40°C (standard)

Sealing Standard

IP-67 (standard) protected against high pressure jets of water and short periods of emersion
IP-68 (available) protected against high pressure jets of water and long periods of emersion at depths of up to 5m

Material

17-4 PH Stainless Steel (standard)
4140 / 4340 High strength alloy steel may be possible

Protective Coating

Electro-finish Stainless Steel
4140 / 4340 : Industrial electroless nickel – high phosphorous corrosion and chip resistant

Bridge Resistance

350 Ohm (standard but customizable)

Custom Load Pin Transducers

WIRELESS LOAD SHACKLES

Our wireless load shackles are based on the industry standard Crosby shackle and come in capacities ranging from 8.5t to 55t. Equipped with clip lock pin for fast assembly and dissassembly. Our 2.4Ghz wireless transmitters can provide a open field range up to 2000 ft at 3m height and can be display on a single channel or multi-channel hand held receivers.

Custom Load Pin Transducers

SHEAR LOAD PIN WITH AMPHENOL MILITARY CONNECT

External indicators can also be connected to the force pin via 4-pin military style quick-disconnects. This allows for easy disconnection and reconnection from the weight pin should the shear pin ever need to be moved, repaired, or stored. Quick disconnect cable comes in 10 ft, 20 ft, and 50 ft lengths.

Custom Load Pin Transducers

CABLED LOAD PIN

Tension measurement can be displayed by an indicator via wired connection (see wired digital indicator). The cable connection between the shear pin and display can be a seal-over hard connect. This is suitable for installations where the load pin is not expected to be disconnected from the indicator. Please specify how much home run cable is required.

Custom Load Pin Transducers

M2000 LOAD CELL INDICATOR

The recommended indicator for tension applications is the M2000 which provides for multi-point calibration to improve accuracy. If the crane is located outside, the M2000 should be purchased in a NEMA enclosure (see left photo) to protect against dust and water. Various enclosures are available (see below images) and more details about the M2000 are available in the indicators website.

Custom Load Pin Transducers

SETPOINT OPTION CARD

The M2000 is available with a setpoint option card. These are overload detection and protection devices. Setpoints utilize solid state relays that can be used to trigger alarms or switch devices (i.e. motors) on or off at specified weights. When ordering the Setpoint option the type of device (AC or DC) being switched must be specified. Setpoints are frequently used in digital hanging crane scale applications.

Custom Load Pin Transducers

PARTS OF LINE SOFTWARE

The M2000 can be loaded with a special program that allows a hanging crane scale operator to adjust the indicator for multiple “Parts of Line”. The program is configurable for one to twelve parts of line and the software will be provided free of charge when needed with the purchase of an M2000 indicator and a crane scale dynamometer.

Custom Load Pin Transducers

REMOTE SCORE BOARD

Remote score boards are often referred to as “remote displays”. This type of display must be used in conjunction with a digital indicator equipped with a serial output. The remote display mirrors what is displayed on the weight indicator. They are used in applications where weighing information needs to be seen at a distance from the indicator. Score boards are available in 2″ (50 ft visibility), 4.5″ (250 ft visibility) and 6.5″ (300+ ft visibility) lettering.

Custom Load Pin Transducers

4-20 mA SIGNAL CONVERTER

We can supply 4-20 mA ouput versus standard mV/V signal. The design incorporates a load cell shield connection and polarity insensitive current loop connections. It is not susceptible to damage from shorting loop leads together or to ground during operation and is specifically designed for ESD hazardous environments. These converters are ideal for systems that require a PLC.

Testimonials

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I wanted to pass on a thank-you from my customer EMS-Tech. Specifically to Marc but also to the others at Massload that were involved but I didn't deal with directly. Last fall EMS-Tech bought a pair of custom ML-700s to measure cable tension for the winches that manipulate the loading spout at a grain terminal. All was going well until about 5 weeks ago, when an operator at the terminal bypassed the safety mechanism, overloaded and broke the tension link as well as some other equipment. EMS-Tech has been under a lot of pressure from their customer to put the grain terminal back into service ASAP. Marc & Massload made every effort to ensure that the custom ML-700 was delivered on time as promised. Originally, the ML-700 was to be shipped via UPS Express but when Marc found out that UPS could not guarantee delivery, he hand delivered the equipment to Fedex. This saved at least two days and provided the time needed to configure & calibrate the electronics before handing the equipment over to EMS-Tech for installation and commissioning.
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Ian Claudi
JEB Controls
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I’ve always had a positive experience with Clint. I get a quick reply when asking for a quote for load cell and the goods get delivered fast. Thank you!
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Pierrette Mignault
Atlantic Power Ltd Partnership
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Cost effective, simple to set up product. Excellent support during setup when we tried to set things up different than recommended and needed the details explained so we understood everything that was going on with all the cells so that we would get good readings even though we set it up differently than recommended.
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Alex Siemens
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I have been using Massload Technologies for the past 10 years and I must say that I have always received exceptional support and guidance from the Massload team.
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Kirk Thomas
Non Destructive Testers Limited
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Clint went over and above to help us diagnose the issue with our load cells indicator and provide us with a replacement over the weekend. Always had good experience dealing with them.
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Parmjot Singh
Innovative Stonecraft
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We needed a tension link to do some load testing in a couple days notice. Massload was able to deliver and were quick to respond and answer any questions we had.
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Calvin Drayton
Croatia Industries
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Wonderful buying experience with lots of help in choosing which load cell to go with. My 50,000lb wireless tension link has worked flawlessly for over a year and the price was cheaper than anywhere else I looked.
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Joshua Acosta
Pepe's Towing Service

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