WE SPECIALIZE IN REPAIR AND MAINTENANCE WHEN OTHERS WONT
Our shop and travel rates are competitive and economical. We travel when and as needed, and strive to provide very quick response times.
Diagnostic Test Tools
Our number one diagnostic tool we use is our brains with over a half century of experience in the metal working industry.
We Usually Carry:
Electrical Multimeter: Used for testing wiring, continuity, and wire insulation breakdown and voltages.
Motor and Generator Megohmmeter: Used to test motor lead insulation breakdown, motor winding resistance values, and motor winding insulation values (indicating if a motor is functional).
Other equipment we have obtained:
12x12x3 precision granite block: certified to .00005” over 6”. It’s usually used to verify squareness.
Drawbar Dynameter: measures “clamp force” of the tool to the spindle.
Renishaw Ballbar System : See additional accordion on home page
Renishaw laser calibration system: See additional accordion on home page.
RS-232 Mini tester with LED indicators: Used to test communications from computers to machine controls
Various dial indicators and bases
We always carry full sets of SAE and metric hand tools. Consists of but not limited to Wrenches, Socket wrenches, Ratchets, Allen wrenches, screw drivers, Torx wrenches and punches.
Ballbar Diagnostics
Ball bar diagnostics is based on how accurately a CNC machine will trace a circle. The more accurate the circle, the more accurate the positioning performance of the CNC machine’s two axis. The test can be done to include all three axis combinations (XY, XZ, and YZ). Many Characteristics in the machine’s control system, geometry, wear and binding, to name a few, can cause deviations from the theoretical circle desired by operators and owners of CNC equipment.
We use the Renishaw QC-10 ballbar diagnostic system, giving us the ability to analyze up to 23 different machine errors. By measuring the actual circular path and comparing it to the desired theoretical path we can assess the CNC machine’s position accuracy and determine the source of error.
It allows us to establish a benchmark and accurately track the conditions of machines, with quantifiable values, as well as diagnose a maintenance problem that slowly appears over time and therefore often goes unnoticed. We can eliminate a future major repair by completing less costly corrective maintenance today.
Laser Calibration
The machining industry has to meet ever tightening tolerances and the requirements of international quality standards. The use of a Renishaw ML-10 laser interferometer measurement system is used to allow machining companies to meet these tolerances as well as ISO 9001 industry standards.
Laser calibration measures the linear position accuracy of a axis by comparing the movement displayed the machine’s control with the distance measured by the laser. This provides an accuracy of +/- 0.5 ppm (parts per million), with a resolution of 1 nanometer. We can check the ability to repeat an axis with multiple tests. This will also let an operator know if a machine is wearing and requires maintenance.
Most machine controls have compensation tables, in the control. To meet ISO 9001 certification or just to increase your machine’s accuracy, these compensation tables should be updated every 3 years.
Preventative Maintenance
INSPECTION CHECKLIST
NOTE: List of services and inspection checks incomplete. For further in-depth
inspection items and processes please contact. All items and services are negotiable
and customizable to meet our customers needs.
Op-check & Safety:
- Interlocks
- Safety Buttons
- Guards
Service/Replace Chemicals:
- Spindle Lubrication Oil
- Coolant Fluid
- Hydraulic Oil
Coolant System:
- Clean Tank (chips, oil, sludge)
- Inspect Pumps
- Clean Screens
Tool Changer:
- Operational Check
- Clean Carousel
- Check ATC Belt
Hydraulic System:
- Hoses
- Connections
- Oil Leaks
Air Filters:
- Main Electrical Cabinet
- Spindle Motor
- Fan Filters
Electrical System:
- Connections
- Terminals
- Limit Switches
Mechanical System:
- Drive Belts
- X,Y, Z Backlash Adjustment
- Counterbalance System
Conveyors:
- Inspect Cabling
- Inspect Links
- Grease Bearings
Cleaning:
- Inside/ Outside
- Windows
- Lights
- Etc.
Diagnostic Test Tools
Our number one diagnostic tool we use is our brains with over a half century of experience in the metal working industry.
We Usually Carry:
Electrical Multimeter: Used for testing wiring, continuity, and wire insulation breakdown and voltages.
Motor and Generator Megohmmeter: Used to test motor lead insulation breakdown, motor winding resistance values, and motor winding insulation values (indicating if a motor is functional).
Other equipment we have obtained:
12x12x3 precision granite block: certified to .00005” over 6”. It’s usually used to verify squareness.
Drawbar Dynameter: measures “clamp force” of the tool to the spindle.
Renishaw Ballbar System : See additional accordion on home page
Renishaw laser calibration system: See additional accordion on home page.
RS-232 Mini tester with LED indicators: Used to test communications from computers to machine controls
Various dial indicators and bases
We always carry full sets of SAE and metric hand tools. Consists of but not limited to Wrenches, Socket wrenches, Ratchets, Allen wrenches, screw drivers, Torx wrenches and punches.
Ballbar Diagnostics
Ball bar diagnostics is based on how accurately a CNC machine will trace a circle. The more accurate the circle, the more accurate the positioning performance of the CNC machine’s two axis. The test can be done to include all three axis combinations (XY, XZ, and YZ). Many Characteristics in the machine’s control system, geometry, wear and binding, to name a few, can cause deviations from the theoretical circle desired by operators and owners of CNC equipment.
We use the Renishaw QC-10 ballbar diagnostic system, giving us the ability to analyze up to 23 different machine errors. By measuring the actual circular path and comparing it to the desired theoretical path we can assess the CNC machine’s position accuracy and determine the source of error.
It allows us to establish a benchmark and accurately track the conditions of machines, with quantifiable values, as well as diagnose a maintenance problem that slowly appears over time and therefore often goes unnoticed. We can eliminate a future major repair by completing less costly corrective maintenance today.
Laser Calibration
The machining industry has to meet ever tightening tolerances and the requirements of international quality standards. The use of a Renishaw ML-10 laser interferometer measurement system is used to allow machining companies to meet these tolerances as well as ISO 9001 industry standards.
Laser calibration measures the linear position accuracy of a axis by comparing the movement displayed the machine’s control with the distance measured by the laser. This provides an accuracy of +/- 0.5 ppm (parts per million), with a resolution of 1 nanometer. We can check the ability to repeat an axis with multiple tests. This will also let an operator know if a machine is wearing and requires maintenance.
Most machine controls have compensation tables, in the control. To meet ISO 9001 certification or just to increase your machine’s accuracy, these compensation tables should be updated every 3 years.
Preventative Maintenance
NOTE: List of services and inspection checks incomplete. For further in-depth inspection items and processes please contact. All items and services are negotiable and customizable to meet our customers needs.
Op-check & Safety:
– Interlocks
– Safety Buttons
– Guards
Service/Replace Chemicals:
– Spindle Lubrication Oil
– Coolant Fluid
– Hydraulic Oil
Coolant System: – Clean Tank (chips, oil, sludge)
– Inspect Pumps
– Clean Screens
Tool Changer:
– Operational Check
– Clean Carousel
– Check ATC Belt
Hydraulic System:
– Hoses
– Connections
– Oil Leaks
Air Filters:
– Main Electrical Cabinet
– Spindle Motor
– Fan Filters
Electrical System:
– Connections
– Terminals
– Limit Switches
Mechanical System:
– Drive Belts
– X,Y, Z Backlash Adjustment
– Counterbalance System
Conveyors:
– Inspect Cabling
– Inspect Links
– Grease Bearings
Cleaning:
– Inside/ Outside
– Windows
– Lights
– Etc.
Since 1952 we have been maintaining, repairing and reviving, out of warranty steel fabrication machines and more. We perform out of warranty repairs and maintenance when others won’t.
The goal for our customers is to minimize any downtime and maximize efficiency of their CNC and steel fabrication machines. By employing only trained and certified CNC machine repair technicians and by offering quick response machine repairs for the best customer service we help you reach your goals. You don’t like down machines, neither do we. Let’s get it running and keep it running!
- CNC Machine Repairs
- CNC Machine Maintenance
- We service and repair steel fabrication Shears, Brakes, Iron Workers, Saws, Punches, Rolls, Dust collectors, All Types of Conveyors, Etc.…..
We Service:
- Minnesota
- Wisconsin
- North Dakota
- South Dakota
- Iowa
The Lead Technician, Matthew Hammerlund is an electronic, mechanical and engineering technician and has decades of experience with these machines. He is a graduate of Gustavus Adolphus College’s elite Physics program. Matt has worked (and played) around steel fabrication machines since 1962 (He was born in the back of the shop) at Hammerlund Mfg.
That company, has evolved into CNC Service N Repair, and is now helping manufacturers get the most from their machines. He leads repair and maintenance technicians and excels in every type of mechanical and electrical task from design to retro-fitting and repairs. Matt’s experience and know-how in all areas and aspects of fabrication make him invaluable to any project or manufacturer.