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Featured Product Alert - 120 in-lbs Inline Preset Torque Limiter

Solar Foundations’ custom Inline Preset Torque Limiter improves productivity and efficiency while maintaining precise torque control when mounting solar panels to our structures. Our preset click-type torque limiter ensures that the solar panel mounting fasteners and SFUSA rail holdowns are tightened to the correct specifications.

The torque limiter provides a distinct ‘click’ when the preset torque value is reached. The use of Solar Foundations’ preset torque limiter allows for rapid fastener installation while at the same time ensuring a quality installation which is in full compliance with the installation instructions.

ACCURATE REPEATABILITY PROTECTS PRODUCT AGAINST DAMAGE PRECISE TORQUE CONTROL

• Slip-resistant drive adaptor
• Compatible with any standard 1/2-inch chuck cordless drill
• Utilizes standard 3/8-inch drive sockets
• An audible ‘click’ indicates that the preset 120 in-lbs of torque has been reached
• Compact design helps maintain drill balance
• Made in the USA

$145.00 each

Cordless Drill vs. Impact Driver

Cordless Drill
Solar Foundations’ 120 in-lbs Inline Preset Torque Limiter CAN be used with a standard cordless drill-driver. This tool generally has a low and high speed. Our torque limiter can be used in a low-speed range in a drill mode only. Do not use in an impact/driver mode. Our custom limiter has a slip-resistant drive adaptor designed to work with standard 1/2-inch drill chucks.

Impact Driver
Our 120 in-lbs Inline Preset Torque Limiter CANNOT be used with an impact or impulse driver. An impact/impulse driver delivers repetitive high dynamic torque impacts in place of the continuous stable torque of a standard drill-driver. The repetitive high momentary torque will damage the torque limiter and result in a loss of calibration.

(click images to view larger versions)

Instruction Points

1. Installation
   1. Use with a 1/2-inch chuck corded or cordless drill capable of providing a minimum of 250 in-lbs of torque
   2. Ensure drill speed is set to low range (maximum of 500 rpm)
   3. Ensure drill is set to “drill mode”
   4. Use any good quality 3/8-inch drive socket - because the torque limiter is not to be used in an impact mode, it is not necessary to use impact grade sockets
   5. Ensure the torque limiters’ slip-resistant drive adaptor is fully seated in the drill chuck
   6. Attach the desired size 3/8-inch drive socket to the torque limiter
      CAUTION:
      • Do not use with the drill in “impact/driver” mode as this will damage the torque limiter
2. Initial Startup
   1. Ensure the drill is securely held to counter the torque during tightening of the fastener
   2. Slow the drill speed down to less than 40 rpm as torque resistance builds and prior to activation of the torque limiter
   3. As soon as the first audible click is heard, stop the drill - the audible click indicates the preset torque has been reached
      CAUTION:
      • Continued operation of the drill after reaching the preset torque will result in multiple activations of the torque limiter (repeated clicking)
      • Continued activation of the torque limiter following the initial click will result in unnecessary wear and possible damage to the torque limiter
3. Calibration
   1. The torque limiter should be recalibrated yearly or following every 750 kW of panel installation, whichever occurs first
   2. Additionally, recalibration shall be performed following any event that may have resulted in a loss of calibration accuracy
      CAUTION:
      • Keep the torque limiter clean and free of dirt - dirt can work its way into the torque limiter resulting in a loss of calibration

Download the 120 in-lbs Inline Preset Torque Limiter here.

For more information on our products, contact Solar Foundations USA by calling (855) 738-7200 or email info@solarfoundationsusa.com.

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