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Automatic nail making machines - series THA
The automatic THA nail making machines are designed for the manufacture of nails and other products from steel, copper, brass and aluminium alloys wire of round and square section. The nails manufactured suit for further machine processing. With adaptation or simple exchange of cutting tools, the automatic THA machines are able to manufacture different kinds of products as stated in the summary of assortment. The input material has to comply with technical parameters of various machines as specified in the Table. As the range of manufacturing possibilities of the automatic THA machines is very wide, the manufacturer only gives a guaranty for the high quality of product providing the diameter-to-length ratios have been respected, in accordance with the nail standards, stength of the material to be processed and rate of production per time unit, for instance. In case of special products, previous consultations with the machine manufacturer are recommended.

    The rational design is a guaranty of high utility value of the automatic machines noted fot their large number of advantages:
  • high output
  • broad operating possibilities, easy attendance, fast and simple setting up
  • easy acces to the individual mechanisms
  • easy renovation of the working tools
  • small area occupied, not requiring special foundations, possibility of installing the automatic machines on higher storeys
  • low noise generation and little vibrations thanks to shock absorbers installed
  • high tool and component unification
  • possibility of additionally completing the machines with a large range of special accessories enlarging their operating possibilities


Type designation comment:
                THA 40/120 S-E
THA                        horizontal automatic forming machine
40                        tenfold maximum wire diameter
120                        maximum product length (in mm)
S                        type of jaws – fourteen position jaws
С, D, E                        model of machine – grade of innovation

 

perating tools
Jaw boxes are highly universal, because only two sizes cover the whole range (14/32 + 25/60, 31/80 + 40/120). Identical fixing dimensions make it possible to use both single-position and multi-position jaw boxes without any adaptation of the machine. So depending on the type of product, it is operatively possible to choose the most convenient box - for instance, for current jainer´s nails a multi-position box (and on the contrary, for some types of precision nails and special types of products, a single-position box). By such adaptation the operator modifies the "S" machine make into a make without "S". The boxes can also be used as a fixture when reconditioning the jaws.

Multi-position jaw box
The automatic machines provided with multi-position jaw boxes are especially suitable for new-comers and less equipped nail manufacturers. But the use of such automatic machines improves the economy of production even of experienced and traditional nail manufacturers, too.

    The advantages of automatic machines provided with fourteen - position jaw box consist in their:
  • suitability for joiner´s nail manufacture
  • improvement of production economy:
    • fourteen times longer service life of jaws
    • better unilization of the expensive tool steel
    • shorter idle time for exchanging the worn-out drawing dies
    • simpler jaw manufacture
Single-position jaw box
These automatic machines are especially suitable for manufacturing precision nails for further machine processing, and other special products. They suit for the manufacture of highly accurate products of high quality.
    The advantages of automatic machines provided with single-position jaw boxes consist in their:
  • suitability for the manufacture of precision nails for further machine processing
  • suitability for manufacturing other special products
  • possibility of jaw renavation


Nail manufacture
The nail manufacture takes place within the space of hammer, jaw box and shering knives. These mechanism perform the head forming, feed spet, cut-off and knocking down of the finished nail to the evacuating chute.

The product length is steplessly adjustable. Any modification of product shape or wire diameter requires exchange of tols or an adoptation of the machine. In certain cases, the speed of the automatic machine shouls be reduced. As the automatic machine design is continuously being adapted to the newest knowledge of development, ask the manufacturer for more information in case you are planning to manufacture parts that are not included in the summary.

 

Basic technical parameters:

Type

THA 14/32

THA 25/60

THA 31/80

THA 40/120

Number of nails manufactured (pcs/min.)

900 pcs

700 pcs

600 (*660) pcs

500 (*550) pcs

Minimum diameter of wire

0,7 mm

1 mm

2,2 mm

2,5 mm

Maximum diameter of wire
1,4 mm
2,5 mm
3,15 mm
**3,6 mm
4,0 mm
***4,6 mm

Wire nominal diameter tolerance

+/- 0,03 mm

+/- 0,03 mm

+/- 0,04 mm

+/- 0,05 mm

Minimum length of nail

6 mm

10 mm

10 mm

10 mm

Maximum length of nails

35 mm

63 mm

80 (90) mm

120 mm

Max. diameter of Al-alloy wire

-

4,0 mm

5,0 mm

6,0 mm

Maximum diameter of head ****

3,5 mm

6,0 mm

8,0 mm

10 mm

Maximum input

3,5 kW

3,4 kW

5,9 kW

5,9 kW

Frequency converter SIEMENS

Enables the rpm regulation and also the main motor is protected during each start of machine.

Standard electrical equipment supplied

400 V/50 Hz, 3 phases (modifications to special order)

Min. protection of supply leads for stand. el. equipment

20 A

25 A

32 A

32 A

Machine weight without accessories

510 kg

820 kg

1540 kg

1540 kg

Machine weight with accessories

541 kg

881 kg

1604 kg

1604 kg

Lubrication

electronic

 
Optimal oil consumption
 
0,1 l/8 hour
 
0,1 l/8 hour
0,036 l/19800pcs nails
0,024 l/20 000pcs
nails

Oil tank no.1 approximate capacity

16 l of oil

Oil tank no.2 approximate capacity

3 l of oil

2 l of grease

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

     * when using the frequency convertor (model ,,E,,)
     ** maximum 400 rpm
     *** maximum 350 rpm
     **** maximum 2,5 times the diameter of the steel wire

 

Basic dimensions of the automatic machines (mm)
Type THA 14/32 THA 25/60 THA 31/80 THA 40/120
Length 1250 1820 2320 2370
Width 880 960 1200 1180
Height 1140 1080 1270 1260
Transport. length 1080 1300 1660 1710
Transport. width with slide shoes 1300 1300 1400 1400
Transport. height 1240 1180 1370 1360

The machines are supplied partially disassembled (straightening mechanism). The machine can be delivered in wooden oversea packaging.


Suitable wire stock
Wire diameter Recommended max. strength (MPa)
up to 1 mm 1030
1 to 1,6 mm 981
1,6 to 2,2 mm 883
2,2 to 3,5 mm 785
3,5 to 4 mm 735


Theoretical outputs of THA series automatic machines in kilograms per one hour (kg/h) for joiners´s nail according to ČSN standards
THA 14/32 nail length l (mm)**
diameter d (mm)* 6 8 10 12 16 20 25 32
0,71 1,35 1,67            
0,80   2,21 2,65 3,08 3,89 4,81    
0,90     3,46 4,00 5,08 6,16    
1,00     4,32 5,02 6,32 7,61    
1,25         10,21 12,31 14,90  
1,40           15,71 18,90 23,42


THA 25/60 nail length l (mm)
diameter d (mm) 10 12 16 20 25 32 36 40 45 50 56 63
1,00 3,36 3,91 4,91 5,92                
1,25     7,94 9,58 11,59              
1,40       12,22 14,70 18,27            
1,60       16,42 19,74 24,40 29,61          
1,80           27,55 30,87 34,23        
2,00               42,84 47,88      
2,24                 60,06 66,36    
2,50                   82,74 92,82 104,16


THA 31/80 nail length l (mm)
diameter d (mm) 45 50 56 63 70 80
2,24 51,48 56,88        
2,50   70,92 79,56 89,28    
2,80     100,10 105,50 118,10  
3,15   112,30 125,60 141,10 156,60 178,20


THA 40/120 nail length l (mm)
diameter d (mm) 50 56 63 70 80 90 100 110 120
2,50 59,1 66,3 74,4            
2,80   83,4 87,9 98,4          
3,15 93,6 104,7 117,6 130,5 148,5        
3,55       165,3 188,7 211,8      
4,00         243,0 272,4 315,0 330,0 378,0
4,20 ***             366,0 384,0 405,0

* on demand tools for other wire diameter can also be supplied.
** nail length can be steplessly changed by modifying the eccentric eccentrity.
*** diameter 4.2 mm is not included in the ČSN Standard.

Example of products of automatic nail making machines THA:



    For the THA automatics we recommend to order special accessories which are supplied upon separate order only:
  • shearing knives sharpener BNE 35
  • uncoiler QOSD 1000
  • uncoiler QPO 280/300 A
  • tumbling drum OB 850
  • exhausting equipment for the tumbling drum EKO OB 850
  • anti-noise guards PHK 01, PHK 02
  • special operating tools and devicesí
More detailed information are described in cataloques "Technology of nail manufacture".

 


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