SPA Series Wire Rope Load Pins
SPA Series Wire Rope Load Pins
SKU:LOA-3c1667
Precision load sensing wire rope load pins for easy installation and direct force measurement in a wide range of applications.
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$299.99
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$299.99
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SPA Series Wire Rope Load Pins
$299.99
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SPA Series Wire Rope Load Pins
$299.99
Quantity: 1
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The SPA Series Wire Rope Load Pins are precision load sensing devices designed to seamlessly replace wire rope pins in Crosby (or Equivalent) wire rope sockets without the need for extensive machining or hardware adjustments. With a measurement range from 12,500 to 600,000 lbs, the model SPA-100 (SS) X offers direct force measurement with high accuracy and reliability. Constructed from high-strength stainless steel and featuring rugged internally sealed strain gauges, these load pins ensure durable performance even in the most demanding environments. Easy to install and compatible with various applications including mooring lines, clam shells, crane cables, bridge support cables, and cable dead ends, these load pins provide a convenient solution for precise force measurement.
Product Specifications
Dimensional Drawing Dimensional Drawing
SPA Clevis Pin
Electrical Specifications Cable
#20(26x34) AWG., rubber insulation, shielded, rubber jacket, 4-Conductor (Standard Cable)
Electrical Specifications Excitation
Red
Electrical Specifications Function
Wire Code
Electrical Specifications Mating Plug
PT06A-10-6S (SR)
Electrical Specifications Receptacle
PTIH-10-6P
Electrical Specifications Signal
Green
Features 0
Precison Load Sensing Rugged Internally Sealed Strain Gages Easy Installation Direct Force Measurement High Strength Stainless Steel
General Information 0
Wire Rope Load Pins are strain gage transducers developed by Strainsert (U.S. Patent No. 3,695,096). They are manufacured utilizing the internal strain gage process perfected by Strainsert since 1960. We offer precision force measurement by simply replacing existing wire rope load pins.The design is a double-shear arrangement. Typically, force P is applied at the center of the pin while 2 equal opposing forces of P/2 are applied at each end. Strain gages are sealed inside a small axial hole and are positioned at the 2 shear locations at the interface between the center eye and pin ends. The strain gages are positioned and oriented with great precision along the neutral plane relative to the specific direction of force. An anti-rotation device is necessary for proper reading and alignment. If a force P is applied to the pin at an angle other than the specified direction, the theoretical bridge output will be offset by a component of the force along the sensitive direction, i.e. P cos X.The four strain gages (two at each shear location) are electrically connected to form a full bridge, the signal from each gage being additive so that the bridge output is proportional to the sum of the forces transmitted by the shear planes of the pin. The circuit typically includes temperature compensation, signal trim (optional), and zero balance resistors terminating in a suitable connector socket or integral cable, and potted with a sealing compound inside the gage hole for enhanced environmental protection.Standard models include detailed calibration data up to 500,000 lbs. Higher capacity calibration data is available at an additional charge. Strainsert factory calibrations are intended to simulate installed conditions, however, it is recommended that an in-place calibration be performed to account for any installation, tolerance, and/or alignment influences affecting sensor measurement.Standard models are typically used in new applications where the designer can develop the specific load pin joint around the standard load pin dimensions, to optimize force measurement performance. In addition, the standard load pin may fit or can be incorporated through the use of bushings or modification of the assembly.Calibration data up to 500,000 lbs. Higher capacity calibration data is available at an additional charge. Inquire for custom product ranges.Applications include mooring lines, clam shells, crane cables, bridge support cables, and cable dead ends.
Performance Specs Bridge
Full bridge 350 Ohm (Nominal)
Performance Specs Excitation
12 V AC (Maximum) | 12 V DC (Maximum)
Performance Specs Hysteresis
±0.50% FS (Nominal)
Performance Specs Non Linearity
±0.50% FS (Nominal)
Performance Specs Non Repeatability
±0.15% FS (Nominal)
Performance Specs Output Signal
2-mV/V (Nominal) | 2-mV/V (Standardized Output)
Performance Specs Overload Without Failure
300% (Minimum)
Performance Specs Overload Without Zero Shift
150%
Performance Specs Service Temp Range
to 150 °F
Performance Specs Temp Effects On Output
0.008% load / °F (Nominal)
Performance Specs Temp Effects On Zero
0.005% FS / °F (Nominal)
Performance Specs Zero Balance
±2% FS (Nominal)
Specifications A Width Of Center Loading Section
1-5/8 in
Specifications B Width Of Clevis Support Section
13/16 in
Specifications Connector Type
Axial Connector | Permanently Attached Axial Cable
Specifications C Length Of Pin Reduced Section Instrumented Zone
5/8 in
Specifications Dp Nominal Pin Diameter
2.250 in
Specifications E Active Length Of Pin
4-1/2 in
Specifications F Clevis Pin Head Length
2 in
Specifications G Extension Of Pin For Keeper Plate Installation
5/8 in
Specifications H Width Of Keeper Plate Slot
17/64 in
Specifications J Depth Of Keeper Plate Slot
3/8 in
Specifications Keeper Plates
SPA-65-112-1-A
Specifications Load Capacity
65,000 lb
Specifications L Overall Length Of Pin
7-1/8 in
Specifications Material
Stainless Steel 17-4, H-1025 (Standard)
Specifications Safety Factor
3.8
Specifications U Nominal Spacer Thickness
1/8 in
Specifications Wire Rope Diameter
1.13 Inch