Mitsubishi Ball Screw Field Service

Ballscrew Guys provide low cost, fast-response, on-site ball screw repair and refurbishment services for your Mitsubishi Laser Cutters, Water Jets, and Machining Centers.

Can you fix it?

We have serviced and installed hundreds of ball screws and understand each machine has its own history and special needs. In most cases 1-2 axes can be turned in one production shift.

How much will it cost?

Our standard refurbishment services are typically 50-70% cheaper than buying new from the manufacturer and we can likely get your machine back up and running in "like new" condition within just a few days.

When can you be here?

Typically within two weeks. We can come out and inspect your equipment within 3 business days in emergency situations.

(877) 768-4064

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Services

We are specialists in on-site repair and refurbishment of Mitsubishi Laser Cutter, Water Jet, and Machining Center linear motion systems including ball screw assemblies and linear way guides. During a consultation over the phone we will troubleshoot your issue and follow up with a service request with travel and work estimates. Multiple machines may be discounted as well as travel shared with neighboring facilities if scheduled down time is flexible. We can come out and inspect your equipment within 3 business days in emergency situations.

Basic Services Include:

  • Ball Screw Repair and Refurbishment
  • Ball Screw Installation and Removal
  • Ball Screw End Bearing Replacement
  • Linear Way Guide Rail Installation
  • Linear Way Guide Block Repair and Refurbishment
  • Clean, Flush, and Lube Service
  • Free Inspections

We can perform inspections and service of linear motion systems in a variety of configurations including any of the following:

Mitsubishi

Type Series Models
Laser Cutters HC Various PANS OUT, CONVEYOR OUT
HD Various PANS OUT, CONVEYOR OUT
LVP Various Y-AXIS MOST COMMON PROBLEM
LXP Various (2) X-AXIS MOST COMMON PROBLEM
LZP Various Y-AXIS MOST COMMON PROBLEM
ML Various Y-AXIS MOST COMMON PROBLEM
VZ Various Y-AXIS MOST COMMON PROBLEM

Service Notes

Mitsubishi LXP

Ballscrew Guys have extensive experience field servicing the Mitsubishi LXP CNC laser line. The accuracy of the dual X-Axis and the single Y-Axis on a typical LXP can be restored in one production shift.

Here we are pulling back the covers and starting to clean the dual X-Axis Ball Screws and Linear Way Guide systems. The most important factors in keeping the LXP motion system running smooth over the years is making sure that all protective covers are intact and properly installed. The more the bearing systems under the covers are kept cleaned and lubricated, the longer they will last.

Mitsubishi LXP Cleaning and Preparation
Here we are pulling back the covers and starting to clean the dual X-Axis Ball Screws and Linear Way Guide systems. The most important factors in keeping the LXP motion system running smooth over the years is making sure that all protective covers are intact and properly installed. The more the bearing systems under the covers are kept cleaned and lubricated, the longer they will last.

The Mitsubishi LXP 2512 (4x8) and LXP 3015 (5x10) Lasers are one of the most pleasant machines to service. They have twin X-Axis ball screws, one on either side. These screws are typically quality Japanese NSK screws with all steel components. These work as a fixed screw with the ball screw shaft locked in place on either end of the axis stroke and ball nut spinning inside of a rotation bearing.

Twin X-Axis Ball Screws
The Mitsubishi LXP 2512 (4x8) and LXP 3015 (5x10) Lasers are one of the most pleasant machines to service. They have twin X-Axis ball screws, one on either side. These screws are typically quality Japanese NSK screws with all steel components. These work as a fixed screw with the ball screw shaft locked in place on either end of the axis stroke and ball nut spinning inside of a rotation bearing.

The main issue with the LXP X-Axis from an accuracy standpoint is a lack of lubrication delivery system. The ball screw assembly is greased upon manufacture, then installed into your machine never receiving additional lube in its lifetime unless someone opens it up for refurbishment. The secondary issue for lost accuracy are the tears and holes in the bellows covers seen after years of work (and abuse). Sometimes they are destroyed completely and never replaced. Either way, lack of protective covers allows fine debris from the cutting process to settle on the screw. The debris eventually migrates through the seals, wearing down the ball bearings inside the ball screw.

LXP X-Axis Loss of Accuracy
The main issue with the LXP X-Axis from an accuracy standpoint is a lack of lubrication delivery system. The ball screw assembly is greased upon manufacture, then installed into your machine never receiving additional lube in its lifetime unless someone opens it up for refurbishment. The secondary issue for lost accuracy are the tears and holes in the bellows covers seen after years of work (and abuse). Sometimes they are destroyed completely and never replaced. Either way, lack of protective covers allows fine debris from the cutting process to settle on the screw. The debris eventually migrates through the seals, wearing down the ball bearings inside the ball screw.

One of the key issues technicians servicing any dual X-Axis CNC Machining system is being able to service them where the sides stay in alignment. It is one thing to refurbish a ball screw to tighten it up, removing deadband and backlash. This is not helpful however if the dual X-Axis servos are not in alignment. We have some tricks to prevent this from happening.... most of the the time. The machine establishes axis home once it moves back and trips the motion sensors. However, there are times where this is not enough. In these cases, “Grid Shift” in the controller is required to bring the axes into synchronization. While we will have to break out the manuals and calculate a new parameter value and find which pulse of the encoder has been skipped or jumped, then enter that value into the controller to align the axis where it needs to be. With a little luck, your Mitsubishi controller will be set to display in English. However, we have done this in Japanese.

X-Axis Alignment
One of the key issues technicians servicing any dual X-Axis CNC Machining system is being able to service them where the sides stay in alignment. It is one thing to refurbish a ball screw to tighten it up, removing deadband and backlash. This is not helpful however if the dual X-Axis servos are not in alignment. We have some tricks to prevent this from happening.... most of the the time. The machine establishes axis home once it moves back and trips the motion sensors. However, there are times where this is not enough. In these cases, “Grid Shift” in the controller is required to bring the axes into synchronization. While we will have to break out the manuals and calculate a new parameter value and find which pulse of the encoder has been skipped or jumped, then enter that value into the controller to align the axis where it needs to be. With a little luck, your Mitsubishi controller will be set to display in English. However, we have done this in Japanese.

Specials

Travel Included

Mitsubishi LXP & HD Lasers

Refurbishment of the (2) X-Axis ball screws of the LXP or (1) X-Axis ball screw buried beneath the protective pans of the HD plus Y-Axis refurbishment. Does not include end bearing, damaged lube line, or linear way guide service. HD service may be discounted if protective table pans are removed and replaced by customer.

Mitsubishi LZP

Refurbishment of the X and Y Axis ball screws and X-Axis linear way guides. Does not include end bearings or damaged lube lines.

(877) 768-4064

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