Hello Sir,
There are two types of diggers available in India which is tractor and tiller mounted.
Posthole digger is an attachment to the three-point linkage of tractor. It consists of an auger, which is driven through bevel gears. The auger gets drive from the tractor pto through a propeller shaft and bevel gear box. The perpendicularity of digging auger is maintained with four-bar linkage formed by hitching syst,em the tie rod provided at the top, The tip of the auger is either diamond shaped or pointed with wings to suit to different soil conditions. The diameter and depth of hole can be changed by changing the auger assembly.
Power tiller operated auger digger consists of a small frame with the provision to lower and raise the soil-working element. Drive is provided to the unit with the help of a set of bevel gears and belt pulleys. Lowering and raising is accomplished by means of a rack and pinion arrangement which is operated by a hand wheel. It has two depth adjustment wheels, which support the weight of the implement, and provides stability. Pits can be dug up to a depth of 45 to 60 cm and the diameter of the posthole is 30 cm. For operation the auger is mounted on a power tiller and is lowered with the help of a steering. The auger is lifted when the desired depth of the hole is achieved.
Other than this Hand hole digging machine which does not use tracter/tiller has supplier in China
Type : earth auger
Model No :JS-530A
Engine type :Single cylinder,2-stroke,air-cooling
Power type : Petrol/GasOil/gasoline mixture ratio:
Contact: Ms Cherry Lee
Telephone:0086-579-87631825
Mobile Phone:18767965109
Address
evelopment avenue 41#,Baihuashan Industrial Zone,Wuyi County
Zip:321200
Country/Region:China (Mainland)
Province/State:Zhejiang
City:Jinhua
Regards
Bhavya
