Dongguan Thor Machinery Co.,Ltd

Electric tapping machine is a machine which specialized for making internal threads in holes, It have quick change chuck for use of taps for through and blind holes, the quick change chuck with integrated safety lutch prevents breakage of taps.
It have higher accuracy and efficiengy in making the threads.It can save cost and significant time. How to choose the right suitable tapping machine for you, now we will give you some question and ansewer for it, you will get how to choose the right electric tapping machine for you.

1. How many models for Tapping machine and Tapping machine capacity size

Tapping machine models and its capacity
We have models as follows:

Model	Capacity
M10	M2-M10
M12	M3-M12
M16	M3-M16
M20	M3-M20
M24	M6-M24
M30	M6-M30
M36	M6-M36
M48	M12-M48

2. How to choose the right Tap holder for Electric Tapping machine
Difference factory use difference screw taps, becuase of difference taps, the tap collets also have different standard.Mainly is ISO, JIS and DIN standard, It also have inch and ANSI standard.
ISO standard is mainly use in China and india country.
JIS standard is mainly use in Southeast Asia and Japan.
DIN standard is mainly use in Europe and South America
Inch size is It is British standard BSW.
ANSI standard is American Standard inch size.

3.What is the difference between Electric and Pneumatic tapping machines
Pneumatic tapping machines are suitable for small thread tapping applications, especially for sizes below M12, such as common specifications including M3, M4, M5, M6, and M8. For thread sizes larger than M8, an electric tapping machine is recommended, as it provides stronger power and more stable performance.Pneumatic tapping machines require connection to an air compressor, which results in relatively higher noise levels. In contrast, electric tapping machines operate more quietly. Electric tapping machines have now become the mainstream choice for threading operations.

4.What is the warranty policy for the tapping machine?
Main components are covered by a 1-year warranty under normal use. If a failure occurs within 1 year, we will provide free replacement parts. The customer is responsible for shipping costs. Consumable parts are not covered by warranty. Main warranty parts include: servo motor, drive, display screen, gear reducer, and machine bracket.

5.What types of tapping chucks are available?
Tapping chucks are available in different standards and interface sizes.

Thread standards include ISO, JIS, DIN, PT, NPT, and INCH.

GT12 chuck: 19mm interface, used for 600W machines. GT24 chuck: 31mm interface, used for 1200W machines.

1200W machines can use a 31–19 adapter to connect GT12 chucks.

For M48 machines, the main interface is 48mm and the standard chuck model is TC1433. Chuck range: GT24 (TC1433) for M12–M24, GT48 (TC1443) for M27–M48. A 48–31 adapter is available.

6.What are the parameter passwords?

Machine parameter password: 112233
Factory parameter password: 135246 T
hese parameters should only be changed by trained personnel.

7.How to choose the correct tap?
Tap selection depends on the material being processed.

Stainless steel requires stainless steel taps. Aluminum requires aluminum taps.

Recommended brands include YAMAWA and GUHRING.

8.What functions does the tapping machine have?
The tapping machine can perform multiple operations depending on accessories:

Thread tapping Horizontal tapping (with universal head)
Chamfering (with drill chuck)
Nut tightening (with driving attachment)
External threading (with die set)
Drilling (with drilling attachment)
Deep hole tapping (with extension rod)

9.What is the maximum air blowing pressure of the electric tapping machine automatic air blow system?
The automatic air blowing system provides a pressure of approximately 6–7N. It helps remove chips during tapping and improves machining stability and tool life.

10.What are the reduction ratios of the electric tapping machine?
The reduction ratio varies depending on the tapping size:

M10: 1:5   ，   M12: 1:9     ，  M16: 1:16    ，  M20: 1:25    ， M24: 1:30 ，    M30: 1:30 ， M36: 1:40

The gear ratio is designed to match different torque requirements for various tapping sizes, ensuring stable performance and reducing tool wear.

11.How to check if the reducer is still under warranty

The production date mark is printed on the side of each reducer. You can check the production date to calculate the valid warranty period of this component

12.How to switch screen language between English and Chinese

First enter the main screen interface of the machine. Long press the top right corner of the touch screen with your finger until the language switching menu pops up, then tap your target language to finish switching.

13.What to do when Error 312 pops up on the machine screen
The Error 312 alert reminds users to raise the torque protection value of the device. There is no fixed standard figure for this parameter, you can adjust the value step by step, and stop modifying once the machine runs normally without popping up the error code during tapping processing.



14.How to set up the machine for left-hand thread tapping ?
You need to enter the machine parameter page on the touch screen to adjust the motor rotation direction. Switch the original Right-hand direction option to Left-hand, then the machine can process left-hand threads normally.


15.Can this tapping machine process trapezoidal threads ？

Yes, the machine supports trapezoidal thread tapping with matched trapezoidal taps.


16.Why the tapping counter does not show numbers and how to make it display
The counting function only takes effect under automatic operation mode. No counting data will be displayed when the machine works under manual mode, you can switch to automatic mode to view the real-time tapping count.

17.What types of tap holders match the tapping machine spindle ?
There are two series of tap holders for the tapping machine spindle, including GT12 series and TC820 series. GT12 series contains GT12B18 with taper shank and GT12-14 with straight shank, while TC820 series includes TC820B18 taper shank type and TC820-20 straight shank type. All newly produced tapping machines are equipped with straight shank tap holders as standard configuration at present.



18.What solutions are available when E001 overcurrent error appears on the machine?
If the E001 error pops up during idle running, this problem is caused by motor failure and you need to replace the motor. If the error occurs while tapping threads, check the verticality between workpiece and machine first, then replace a new tap for retesting.

19.How to troubleshoot the machine when Error 10 is displayed?
Detect the power cable with a multimeter to check the continuity of resistance. Three consistent resistance readings mean the cable is in good conduction condition. Motor-related faults may include incorrect motor zero position, abnormal rotation, burnt motor or disconnected power line. Uneven resistance values of three wires indicate phase loss fault.

20.What is the correct operation to adjust the tapping chuck?
Turn the adjusting knob counterclockwise for 3 to 4 grids until the chuck starts slipping, then rotate it clockwise for 1 grid to get the optimal clamping state. If slipping happens when processing laser holes which usually feature high hardness, select taps specially for high-hardness material and tighten the chuck a little more.

21.What are the specifications and working principle of the 5-pair pole servo motor?
This 1200W servo motor works under 50-60HZ and serves as the drive component of tapping machines. As an executive component in automatic control equipment, it converts electrical signals into angular displacement or angular velocity of the rotating shaft.

22.What should we notice about the lifting lead screw?
The nut cannot be separated from the lead screw, and it will fail to reinstall once taken off. If replacement is needed, the whole lead screw and matching nut must be replaced together as a set.

23.How to fix the tap holder that falls off the spindle?
Clean the tap holder thoroughly and reinstall it onto the spindle. If the side screw becomes loose, drill a new hole with a hand drill and fasten it tightly with a set screw to solve the problem.

24.How to adjust the torque value under nut tightening mode?
The larger the set parameter value, the smaller the output torque of the tapping machine. The smaller the set parameter value, the stronger the output torque of the tapping machine. You can adjust the value gradually up or down
within the range of 1.8, 1.9 and 2.0 to get proper torque.

25.Why does the spindle stop intermittently during manual tapping?
This fault may be caused by the enabled mechanical depth setting switch. Turn off the depth setting function to solve this problem.

26.What is the specification of T-slot on the 900600 worktable?
The T-slot of the 900*600 worktable adopts M14 specification.

27.What is the drilling range and operation tips when the tapping machine is equipped with drilling attachment?
The drilling range of the machine with drilling accessory is 3-13mm. For holes between 3-6mm, you can directly drill with the matching drill bit. For holes between 6-10mm, pre-drill with a 3-4mm drill bit first, then finish drilling with the corresponding drill bit. For holes between 10-13mm, pre-drill with a 5-6mm drill bit, then use the matched drill bit for final drilling.

28.How to adjust system parameters after replacing the servo motor from 4P to match a 5P driver?
If the machine is fitted with a 4P servo motor while the driver is set for 5P, you can modify the parameter from 5P to 4P inside the system setting page.

29.How to shift gears on the drilling and tapping machine?
The drilling tapping machine is equipped with two shift gears. The upward position is high speed gear. Push the gear shift lever fully into place when switching to high speed gear, otherwise the internal gears will be worn easily. Meanwhile, you also need to select high speed mode on the touch screen interface. Both tapping and drilling processes can be operated under high speed gear.