Overview

Loadpin | Load Sensor

The Straightpoint range of Load Measurement Pins are designed for general use. They are machined from high tensile stainless steel and are normally supplied complete with an anti-rotation plate.
They are built to exacting standards and are suitable for use in exposed situations and can be supplied to withstand immersion in seawater. This range of load cells is Proof Loaded to 150% of the normal rated load.

Our load pin range is typically connected to our Handheld display range or Desktop Controller software package.
Please note: Please advise cable configuration on order - Radial or Axial Pin exit.
If you require a Load pin to a particular size and design, download our Load pin Questionnaire and return, POA.

loadpin load cell

Load Pin General Description

A load measuring pin senses the force applied across it, via strain gauges installed within a small bore through the centre of the pin. Two grooves are machined into the outer circumference of the pin to define the shear planes, which are located between the forces being measured.

Load Pin Environmental Protection

As the instrumented area of the load pin is totally contained within a small central bore, the load pin sensor is inherently waterproof. Manufactured from special stainless steels, fitted with welded or `O' ring sealed end caps and with special attention to the signal cable glanding, a very high operating reliability can be guaranteed even for load pins operating underwater.

Load Pin Typical Locations

If a pin exists within a defined load path or can be fitted to experience a force, then a Straightpoint Load Pin can be installed to monitor that load. The sketches below show typical locations for load pins.

Typical locations for loadpin loadcells

Load Pin Locking Systems

A load-measuring pin needs to be securely locked into position in order to fix its orientation with respect to its associated assembly. This needs to be fixed, both in the axial and rotation modes, to ensure that accurate and repeatable results are obtained from the system.
A standard load pin is designed to sense the force in one direction only. A force at right angles to that force will produce a zero output from the sensor.

loadpin load cell locking system diagram

Load Pin Cable & Connector Arrangements

The signal cable can normally exit from the load pin to suit the installation and space requirements. Emphasis should be placed on the protection of the cabling system from accidental damage during installation and use. A plug and socket breakdown can be incorporated at the load pin if required. Extra protection can be provided over the standard polyurethane sheathed cable in the form of hydraulic hose. This provides excellent protection with the advantage of associated fittings being readily available.
loadpin loadcell cable and connectors

Loadpin applications:

Straightpoint Loadpins are used to monitor load in a variety of industrial settings and can be used in place of shear axles, clevis pins and in other mechanical pinned joint applications.

All Loadpin load cells are suppled with the following as standard:
	10 Metres / 30 Feet Cable Proof test certificate Operator Manual Carry/Storage Case

Specifications

Loadpin Load Cell - Specifications

Metric Dimensions = millimetres (mm)

Part Number	LP500KG	LP1T	LP2.5T	LP3.5T	LP6.5T	LP15T	LP25T	LP50T	LP100T	LP250T	LP500T	LP750T	LP1000T	LP1500T
Capacity	500kg	1000kg	2.5te	3.5te	6.5te	15te	25te	50te	100te	250te	500te	750te	1000te	1500te
Resolution	0.2kg	0.5kg	0.001te	0.001te	0.002te	0.002te	0.005te	0.01te	0.05te	0.1te	0.2te	0.2te	0.5te	0.5te
Weight	0.17kg	0.20kg	0.39kg	0.58kg	1.2kg	2.3kg	4.7kg	8kg	11kg	29kg	78kg	145kg	274kg	388kg
Protection	IP67 (IP68 available as option)
Safety Factor	300% of SWL
Operating Temperature	-20 to 70c
Accuracy	0.5% of SWL
Dim A	24	35	45	50	63	75	89	102	110	130	225	295	360	430
Dim B	36	49	70	75	95	114	152	178	190	220	370	500	612	731
Dim C	70	80	100	105	125	150	195	225	230	300	440	590	712	832
Dim D	20	20	25	30	40	50	63	75	88	125	170	200	250	275

lploadpindims Please note if you require a Loadpin to a particular size and design download our loadpin questionnaire and return POA

Imperial Dimensions = inches

Part Number	LP500KGU	LP1TU	LP2.5TU	LP3.5TU	LP6.5TU	LP15TU	LP25TU	LP50TU	LP100TU	LP250TU	LP500TU	LP750TU	LP1000TU	LP1500TU
Capacity	1100lbs	2200lbs	5500lbs	7700lbs	14,000lbs	33,000lbs	55,000lbs	110,000lbs	220,000lbs	550,000lbs	110,0000lbs	165,0000lbs	220,0000lbs	330,0000lbs
Resolution	0.5lb	1lb	2lb	2lb	5lb	5lb	10lb	20lb	100lb	200lb	500lb	500lb	1000lb	1000lb
Weight	0.4lb	0.5lb	0.9lb	1.3lb	2.6lb	5lb	10.3lb	18lb	24lb	64lb	172lb	319lb	603lb	854lb
Protection	NEMA 6 (NEMA 6P available on application)
Safety Factor	300% of SWL
Operating Temperature	-4˚F to 158˚F
Accuracy	0.5% of SWL
Dim A	0.94	1.38	1.77	1.97	2.48	2.95	3.50	4.02	4.33	5.12	8.86	11.61	14.17	16.93
Dim B	1.42	1.93	2.76	2.95	3.74	4.49	5.98	7.01	7.48	8.66	14.57	19.69	24.09	28.78
Dim C	2.76	3.15	3.94	4.13	4.92	5.91	7.68	8.86	9.06	11.81	17.32	23.23	28.03	32.76
Dim D	0.79	0.79	0.98	1.18	1.57	1.97	2.48	2.95	3.46	4.92	6.69	7.87	9.84	10.83