background image

8

Cutting Tips

1. When making long, straight cuts, it may be easier to use a 

metal straight edge as a guide.  Simply clamp it to the 
workpiece to be cut.  HTP America, Inc. also manufactures a 
complete Circle-Cutting and Straight-Line Traversing 
Assembly for frequent cutting of circles and lines.

2. When cutting heavier gauge material (up to the machine 

capability) it is recommended to initiate the pilot arc off the 
edge of the material and dragging the pilot arc to the 
workpiece. 

3. When making rust repairs, it is possible to place the new 

metal over the rusted area and then cut your patch panel at 
the same time you cut the rust.  This process works similarly 
when splicing a quarter panel.

4. Please note that sparks from cutting arcs can damage painted 

surfaces.  The sparks will also pit glass.  We recommend the 
use of a welding blanket to protect these surfaces.

5. The best cutting speed is achieved when the plasma arc 

penetrates the workpiece at an angle of 5-15 degrees.  The 
cutting speed is dependent on material thickness and 
composition as well as operator proficiency.

6. Never turn the machine off immediately after cutting.  

Always allow the post airflow circuitry to run its complete 
cycle to ensure proper cooling of the torch head.

7. It is highly recommended that piercing requirements be kept 

to a maximum of 75% of rated cutting thickness.  This will 
greatly enhance the plasma torch's consumable life.  When 
piercing thick pieces of metal, it is best to hold the cutting 
torch at a 45-degree angle to the work until the plasma arc 
has pierced the material.  Holding the torch perpendicular to 
the work will result in sparks and slag firing back up into the 
plasma torch, greatly reducing consumable life.

Specifications:

Primary Voltage

220 volts

Primary Amperage

16 amps

Cutting Current

15 to 30 amps

Infinitely Variable

Open Circuit Voltage

370 Volts DC

Duty Cycle

30% @ 30 amps

Quality Cutting Capacity

3/8"@ 10"/min

Severance Cutting Capacity

1/2" @ 5"/min

Weight

25 lbs.

Dimensions

17 3/4" L x 6 3/4" W x 11 3/4" H

Cutting Torch Length

19 ft.

Ground Cable Length

16 ft.

Input Power Cord Length

6 ft.

Plasma/Cooling Gas Pressure 65 psi

Plasma/Cooling Gas Volume

3.5 cfm

Summary of Contents for Micro Cut 380

Page 1: ...HTP Air Plasma Cutting System Micro Cut 380 America Inc HTP America Inc 3200 Nordic Road Arlington Heights IL 60005 4729 1 800 USA WELD 847 357 0700 FAX 847 357 0744 www usaweld com ...

Page 2: ...sed one of the most technologically advanced safest and economical plasma cutters available today The owner s manual has been designed to instruct you on the safe operation of your Micro Cut 380 If you read and follow the instructions in this manual your plasma cutter will provide you with years of trouble free operation If you fail to read and understand this manual as well as correctly follow th...

Page 3: ...in the following periods from the date of delivery of Equipment to the original user 1 Plasma cutters power sources and components 1 year 2 All plasma torches 90 days 3 The electrode cutting nozzle insulator spring and gas diffuser are consumable items WHICH CARRY NO WARRANTY provided that HTP is notified in writing within thirty 30 days of the date of such failure As a matter of general policy on...

Page 4: ...shing equipment handy for instant use After completion of cutting inspect the work area for hazardous hot sparks or metal Electrical Shock Voltages in excess of 110V can cause severe burns or fatal shock Severity of electrical shock is determined by the path and amount of current through the body a Never allow live metal parts to touch bare skin or wet clothing When standing on metal or welding in...

Page 5: ... low air pressure led Fig 3 6 will light up Damage to your plasma cutter due to excessive water and or oil in the air supply line is not covered under warranty Your Micro Cut 380 comes equipped with a regulator filter In addition HTP has 2 filters available for removing any impurities from the air If you already have a drier on your compressor we recommend the HTP Super Dry Part 25300 which is a d...

Page 6: ... or green wire to an input hot line terminal It is also strongly recommended that a fusible line disconnect switch be installed in the input power circuit to the plasma machine This would provide a safe and easy method to remove all electrical power from your plasma system whenever it is necessary to perform internal inspection or servicing BEFORE ATTEMPTING TO MAKE ANY PRIMARY POWER CONNECTIONS T...

Page 7: ...E LIGHT your Micro Cut 380 has a safety sensing circuit which has been installed to eliminate the arc ignition if the air pressure and volume are inadequate If this occurs the yellow air pressure light will be illuminated Once air pressure has been restored the light will go out Your Micro Cut 380 requires 65 psi of air when air is flowing through the torch 8 AIR PURGE SWITCH the air purge switch ...

Page 8: ... the plasma sparks will go beneath the panel you are cutting 7 When piercing a thicker sheet of steel 1 8 thick to 5 16 hold the torch at approximately a 45 degree angle and gradually roll the torch until it is perpendicular to the work piece Fig 6 If the torch is held perpendicular to the work to start there will be no where for the slag to flow and it will come straight up and damage the gas dif...

Page 9: ...ng speed is dependent on material thickness and composition as well as operator proficiency 6 Never turn the machine off immediately after cutting Always allow the post airflow circuitry to run its complete cycle to ensure proper cooling of the torch head 7 It is highly recommended that piercing requirements be kept to a maximum of 75 of rated cutting thickness This will greatly enhance the plasma...

Page 10: ...101 16 Current Transformer 152230 17 Choke Coil 164989 18 Transformer 164990 19 Buckle 322065 Spare Parts List Ref Description Part 21 Belt 322408 22 Frame 322497 23 Front Panel 482829 24 Back Panel 482830 25 Diaphram 482833 26 Side Member 482834 27 Pressure Guage 602072 28 Bottom 644183 29 Cover 655061 30 Work Clamp 712231 31 Ground Receptacle 20320 32 Plasma Torch 38180 33 Primary PCB 990179 34 ...

Page 11: ...wn Ref Description Part 1 Trigger Switch 14009 3 Electrodes 38003 Extended Electrodes 62003E 5 Swirl Ring 62058 6 Cutting Tips 38030 Extended Cutting Tip 62030E 8 Gas Diffuser 38005 9 Handle 38008 10 Torch Head 38002 Complete Torch 38180 ...

Page 12: ...11 MicroCut 380 Wiring Diagram ...

Reviews: