BTS is a leading provider of crane LMI replacement systems.  There are several options for the replacement of an older crane load moment indicator (LMI) system.  Most kits fall into two main categories, those for hydraulic boom cranes and those for lattice boom cranes.

Starting at $8,500 for Boom Truck Cranes

Starting at $11,500 for Lattice Crawler Cranes

GET A QUOTE

Crane LMI Replacement Kits Include

• Display / Operator Console
• Computer with Load Chart Programming 
• Anti Two Block with Lockout Capabilities 
• Load sensor: Load Dynamometer, Load Cell at Boom Tip, Load Pin for smaller cranes
  
• Length Angle Cable Reel for telescopic cranes
  
• Mounting Hardware
• Installation & Operators Manuals 

Recent Crane LMI Replacement Projects

We have provided crane LMI computer replacement options and/or parts for hundreds of customers over the years.  Here are a few of the most recent complete LMI computer replacement system jobs.  Most of these jobs involve the replacement of an aging PAT DS350 Vertical LMI system that has become unreliable however the crane itself is in great shape and continues to be used.  Some of our customers come to us without any LMI on their crane and we work with them to get a complete new system for them.

Link Belt HC248H

 
This customer is a large concrete construction provide in the mid Atlantic east coast region.  They approached BTS about a replacement for their PAT DS350 Vertical RCI console.  Unfortunately the lead time to get a replacement from Europe was about 4 months and cost around $15,000.   The customer was not able to wait that long, nor did it make any sense to spend that amount of money to replace one component of such an aging system.  In the end we were able to provide a complete new RCI system to them for less than the price it would have cost for the replacement display.

National Boom Truck Crane

We usually complete several of these boom truck systems a year for customers, many of whom are in the tree service industry.  The National boom truck is particularly simple as it requires only a load sensor and a cable reel.  The original anti two block system can be reused if it is in good condition, thereby saving that expense.  Programming is simple and the customer gets a full color display with full load charts and lockout capabilities.

Grove TM1300

This customer was a large builder in the northwest focusing on large commercial facilities as well as custom build homes.  Their crane was in overall good condition as it had been well maintained and had conservative use in their construction projects.  The crane's old PAT DS350 LMI system however had deteriorated significantly and was giving constant E95 error codes (undetermined error).  We worked with this customer to find an LMI replacement system that was in their budget but with functionality on both main and auxiliary line and was rugged enough to withstand the northern winters and provide years of trouble free use.

Grove RT528C

 
This customer operates an excavation and construction company in the midwest providing highway and bridge construction services as well as support to the oil and gas pipeline industry.  This Grove crane was from the mid nineties however like many others, was in great shape and well cared for.  The computer system however was an old PAT DS350 GW system that had outlived its useful life.  This project was a simple swap out of the old system for the new.  The customer got full load carts and will have years of trouble free use of this crane computer system.

GET A QUOTE

Crane LMI Replacement Kits Include

Crane LMI Replacement kits generally include new display / computer that is connected to the cranes power and can operate lockouts if the crane has them originally installed.  The load measurement is via load cell usually mounted at the boom tip.  There is an option for load measurement with a line rider if excessive vibrations are possible at the boom tip; as is the case with pile driving or running a drag line.  All kits include an anti two block switch mounted at the boom tip.  Hydraulic crane kit include a length angle cable reel while 

CLICK HERE: Hydraulic Crane LMI Replacement Kit

CLICK HERE: Lattice Crane LMI Replacement Kit

Most new crane lmi replacement kits are actually rated capacity indicators, versus load moment indicators.  Some definitions:  

Load Moment (or Rated Capacity) Indicator means a system which aids the equipment operator by sensing (directly or indirectly) the overturning moment on the equipment, i.e., load multiplied by radius. It compares this lifting condition to the equipment’s rated capacity, and indicates to the operator the percentage of capacity at which the equipment is working. Lights, bells, or buzzers may be incorporated as a warning of an approaching overload condition.

Load Moment (or Rated Capacity) Limiter means a system which aids the equipment operator by sensing (directly or indirectly) the overturning moment on the equipment, i.e., load multiplied by radius. It compares this lifting condition to the equipment’s rated capacity, and when the rated capacity is reached, it shuts off power to those equipment functions which can increase the severity of loading on the equipment, e.g., hoisting, telescoping out, or luffing out. Typically, those functions which decrease the severity of loading on the equipment remain operational, e.g., lowering, telescoping in, or luffing in.