We – EPG Group the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears manufacturing facility in China with 5 various branches. For a lot more information: Cellular/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828

Sansung rock drilling extension rod are created with substantial good quality of alloy metal bar and tungsten carbides with excellent dress in resistance and impact toughness excellent, by way of warmth therapy so that it can face up to the toughe EPT rock drilling requires, and transmit intensive affect strength into the rock with the lea EPT feasible loss of vitality. They are extensively utilized in all types of mining, drilling, quarrying, engineering, development, water properly drilling, oil exploring industries and so on.

 

Extension rod:

EPT names are Extension drill steel, Extension drill rod, and Extension steel, M/Frod (Pace rod), generate Hexagonal and spherical cross-sections,Hexagonal rods are much more rigid, heavier and transfer vitality far more efficiently,although growing flushing. Round rods are generally lighter than hexagonal rodsand are normally employed in extension drilling purposes. With the for a longer time steel tending to be bigger in diameter, typical extension metal is characterizedby duplicate thread on every finish of the steel.
Extension rods are created by hollow drill steels, different lengths are available from 600mm to 6400mm. This hollow gap are generally named flushing gap, utilised for transmitting h2o or air for the duration of drilling. And the threads can be employed for connecting couplings, shanks adapters or bits.

Male/Feminine (M/F) rod, speed rod:

M/F drill metal is an substitute to couplings sleeves to include the woman component of the threaded link as an integral component of the drill metal. M/F drill steel supplies much more rigid connections and is easier to uncouple and handle. The provider daily life also tends to be much better than with individual couplings. The advantages of drilling with M/F steel incorporate: effortless managing, quicker uncoupling, tighter connections, the possible to drill straighter holes, and for a longer time service daily life.
For extension rod and M/F steel procedure, the under two various sorts of heat treatment method are utilised to reinforce higher speed and potent percussive drill string components to maximize their overall performance and reliability. For a longer time steel larger in diameter, conventional extension metal, Hexagonal and round cross sections are accessible.

Carburizationis a approach employed to more challenging the entire rod surface area each internally and externally to strengthen and extend the daily life of the rod.

Substantial frequency induction is procedure in which only the thread ends of the rod are hardened to lengthen thread existence.

R32 thread:
Extension rods, R32-Round32-R32, length915mm/1000mm/1220mm/1830mm/2435mm/3050mm/3660mm
M/F rods, R32-Round32-R32, size 915mm/1220mm/1525mm/1830mm/2435mm/3050mm/3660mm
Xihu (We EPT Lake) Dis. speed rods, R32-Round39-R32, duration 3050mm/3660mm
Xihu (We EPT Lake) Dis. tube, R32-Round46-R32, length 1220mm/1525mm/1830mm/3050mm

T38 thread:
Extension rods, T38-Round39-T38, length1220mm/1525mm/1830mm/2435mm/3050mm/3660mm/3965mm/4270mm/4880mm/5530mm/6095mm
Double thread extension rods, T38-Round39-T38, size 3050mm/3660mm
MF rods, T38-Round39-T38, length915mm/1220mm/1525mm/1830mm/3050mm/3660mm/4270mm/4880mm/5530mm/6095mm
Xihu (We EPT Lake) Dis. pace rods, T38-Round46-T38, size 1830mm/3050mm/3660mm/4270mm/4880mm/5530mm/6095mm
Xihu (We EPT Lake) Dis. tube, T38-Round56-T38, length 1220mm/1525mm/1830mm/3050mm/3660mm/4920mm
Hex extension rods, T38-Hex32-T38, duration 1220mm/1830mm/2435mm/3050mm/3660mm

T45 thread:
Extension rods, T45-Round46-T45, size 1830mm/2435mm/3050mm/3660mm/4270mm/5530mm/6095mm
MF rods, T45-Round46-T45, length1525mm/1830mm/3050mm/3660mm/4270mm/5530mm/6095mm
Xihu (We EPT Lake) Dis. velocity rods, T45-Round52-T45, size 3050mm/3660mm/4270mm/5530mm/6095mm
Xihu (We EPT Lake) Dis. tube: T45-Round64-T45, duration 1220mm/1525mm/1830mm/3050mm/3660mm
Xihu (We EPT Lake) Dis. tube: T45-Round76-T45, duration 1830mm/3660mm

T51 thread:
Extension rods, T51-Round52-T51, length3050mm/3660mm/4270mm/4880mm/5530mm/6095mm
MF rods, T51-Round52-T51, length1525mm/1830mm/3050mm/3660mm/4270mm/4880mm/5530mm/6095mm
Xihu (We EPT Lake) Dis. rods, T51-Round76-T51, size 1830mm/3660mm
Xihu (We EPT Lake) Dis. tube, T51-Round87-T51, duration 3660mm

T60 thread:
MF rods, T60-Round60-T60, length 3660mm/4265mm/6095mm

R25 (1″)

MM HEX Extension rod
Rod area 24.8mm
 

Length (mm)	Component No. Totally carburized.	Component No. Surface area hardened	Excess weight approx (kg)
1220 3050	202-5712-C,02 202-5711-C,02		3.7 10.one

MM HEX Extension rod
Rod segment 28.5mm
 

Duration (mm)	Element No. Entirely carburized.	Part No. Surface hardened	Fat approx (kg)
915 1000 1220 1525 1830 2435 3050	202-0309-C,02 202-571-C,02 202-571-C,02 202-571-C,02 202- 0571 -C,02 202-0324-C,02 202-0331-C,02	202-0331-SH,03	three.three three.nine four.5 5.seven six.9 9.two 11.9

MF HEX Speedrod
Rod part 28.5mm
 

Duration (mm)	Part No. Entirely carburized.	Component No. Area hardened	Weight approx (kg)
610 1220	202-0306-MF-C,02 202-571-MF-C,02		2.six five.

R28 (one¹/₈“)

MM HEX Extension rod
Rod segment 32mm
 

Duration (mm)	Part No.	Bodyweight approx (kg)
3050	207-571-C,02	fifteen.

MF HEX Speedrod
Rod segment 32mm
 

Duration (mm)	Component No.	Weight approx (kg)
3050	207-571-MF-C,02	fifteen,7

R32 (1¹/_four“)

MM Spherical Extension rod
 

Size (mm)	Portion No. Entirely carburized.	Element No. Surface hardened	Weight approx (kg)
915 a thousand 1220 1830 2435 3050 3660	203-2509-C,02 203-2510-C,02 203-2512-C,02 203-2518-C,02 203-2524-C,02 203-2531-C,02 203-2537-C,02	203-2524-SH,03 203-2531-SH,03 203-2537-SH,03	four.8 five.7 six.5 9.eight 13.two 16.6 twenty.

MF Round Extension Rod
 

Length (mm)	Element No. Completely carburized.	Element No. Surface hardened	Excess weight approx (kg)
915 1220 1525 1830 2435 3050 3660	203-2509-MF-C,02 203-2512-MF-C,02 203-2515-MF-C,02 203-2518-MF-C,02 203-2524-MF-C,02 203-2531-MF-C,02 203-2537-MF-C,02		5.5 seven.three nine. ten.six fourteen. 17.1 20.7

MF Round Speedrod
 

Duration (mm)	Portion No. Fully carburized.	Component No. Surface hardened	Excess weight approx (kg)
1830 3050	203-2518-MF-90-C,02 203-2531-MF-ninety-C,02		11.five 19.three

MM Round Drifter rod
 

Size (mm)	Component No.	Fat approx (kg)
4000 4310	203-2540-03-C,02 203-2543-03-C,02	22. 24.eight

MF Spherical Xihu (We EPT Lake) Dis. rod
 

Size (mm)	Element No.	Bodyweight approx (kg)
3050 3660	203-4731-MF-C,02 203-4737-MF-C,02	27. 32.

R/T38 (one¹/₂“)

MM Hex Extension rod
Rod area 35.8mm
 

Length (mm)	Element No. R38 thread	Portion No. T38 thread	Weight approx (kg)
1220 3050		235-571-C.02 235-571-C.02	8.4 eighteen.seven

MF Spherical Speedrod
 

Duration (mm)	Portion No. R38 thread	Part No. T38 thread	Bodyweight approx (kg)
915 1220 1525 1830 3050 3660 4270 4880 5530		235-4709-MF-C.02 235-4712-MF-C,02 235-4715-MF-C,02 235-4718-MF-C,02 235-4731-MF-C,02 235-4737-MF-C,02 235-4743-MF-C,02 235-4749-MF-C,02 235-4755-MF-C,02	eight.3 ten.9 thirteen.three fifteen.eight twenty five.5 thirty.five 35.4 forty one.nine forty six.9

MM Round Speedrod

Floor hardened.

Length (mm)	Part No. R38 thread	Part No. T38 thread	Fat approx (kg)
1830 2435 3050 3660 3965 4270	204-2718-SH,03 204-2724-SH,03 204-2731-SH,03 204-2737-SH,03	235-2731-SH,03 235-2737-SH,03 235-2740-SH,03 235-2743-SH,03	fourteen.8 19.5 24.three 30. 32.5 33.9

Fully carburized.

Length (mm)	Element No. R38 thread	Component No. T38 thread	Fat approx (kg)
280 1220 1525 1830 3050	204-2702-C.02	235-2712-C,02 235-2715-C,02 235-2718-C,02 235-2731-C,02	two. 10. 12.5 fourteen.four 24.

MM Spherical Double Thread Extension Rod
 

Size (mm)	Portion No. R38 thread	Portion No. T38 thread	Weight approx (kg)
3050 3660		235-2731-ninety five-SH,03 235-2737-95-SH,03	23.eight 30.

Drifter rod
For one rod drilling drifter rods can be utilised.

MF Xihu (We EPT Lake) Dis. Speedrod
 

Length (mm)	Part No. T38 thread	Fat approx (kg)
1830 3050 3660	235-4918-MF-C,02 235-4931-MF-C,02 235-4937-MF-C,02	21.one 34.5 forty one.three

Xihu (We EPT Lake) Dis. tube
 

Gap diameter (mm)	Tube diameter (mm)	Duration(mm)	Element No.	Weight approx (kg)
sixty four sixty four sixty four sixty four 64 sixty four 76	fifty six fifty six fifty six fifty six fifty six 56 sixty four	1220 1525 1830 3050 3660 4920 3660	235-7012,10 235-7015,ten 235-7018,10 235-7031,ten 235-7037,10 235-7049,10 235-6937,10	twelve.6 fourteen. seventeen.4 28.3 32.eight 47.9 fifty one.

T45 (one³/₄“)

MM Hex Extension rod
Rod area 42.6mm
 

Length (mm)	Part No. Fully carburized.	Part No. Surface hardened	Fat approx (kg)
3050 3660	236-571-C,02 236-571-C,02		twenty five.6 thirty.8

MM Round Extension Rod
 

Size (mm)	Portion No. Totally carburized.	Element No. Area hardened	Weight approx (kg)
3050 3660 4270 6095		236-2931-SH,03 236-2937-SH,03 236-2943-SH,03 236-2961-SH,03	33.3 39.9 46.seven sixty eight.nine

MF Spherical Speedrod
 

Size (mm)	Element No. Completely carburized.	Portion No. Floor hardened	Weight approx (kg)
1525 1830 3050 3660 4270 6095	236-4915-MF-C,02 236-4918-MF-C,02 236-4931-MF-C,02 236-4937-MF-C,02 236-4943-MF-C,02 236-4961-MF-C,02		18.2 21.five 34.7 forty one.6 49. 69.

MF Xihu (We EPT Lake) Dis. rod
 

Size (mm)	Component No.	Fat approx (kg)
3660	236-5137-MF-C,02	fifty five.

Xihu (We EPT Lake) Dis. tube
 

Gap diameter (mm)	Tube diameter (mm)	Length(mm)	Element No.	Excess weight approx (kg)
76 76 76 76 89 89	sixty four 64 64 64 seventy six seventy six	1220 1525 1830 3660 1830 3660	236-6912,ten 236-6915,ten 236-6918,10 236-6937,10 236-6618,ten 236-6637,ten	twenty. 21.six 25.4 forty nine. forty. 77.eight

T51 (2″)

MM Spherical Extension rod
 

Length (mm)	Element No. Completely carburized.	Part No. Area hardened	Fat approx (kg)
3660 6095		237-3137-SH,03 237-3161-SH,03	52.three eighty four.

MF Spherical Speedrod
 

Length (mm)	Portion No. Fully carburized.	Portion No. Surface hardened	Fat approx (kg)
1830 3660 4270 6095	237-5118-MF-C,02 237-5137-MF-C,02 237-5143-MF-C,02 237-5161-MF-C,02		27.five 51.8 64. eighty five.6

Xihu (We EPT Lake) Dis. tube
 

Gap diameter (mm)	Tube diameter (mm)	Length(mm)	Component No.	Weight approx (kg)
89 89 102	seventy six 76 87	1830 3660 3660	237-6618,10 237-6637,10 237-6837,10*	40. seventy nine.one eighty.

We – EPG Group the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears manufacturing unit in China with 5 various branches. For a lot more particulars: Cell/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828 The use of original products manufacturer’s (OEM) element figures or logos , e.g. CASE® and John Deere® are for reference purposes only and for indicating solution use and compatibility. Our firm and the outlined replacement areas contained herein are not sponsored, accredited, or made by the OEM.