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H22 tapered rock drill steel rod

Model Number:Hex22*108mm
Rod Length:500~6400mm Type:H22 Tapered drill rod Material:Material: Z708(40SiMnCrNiMo)/55SiMnMo

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Tapered Drill Rod

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Product Details

Description
H22 Tapered rock drill steel rod is a further development of the integral drill rods. It usually has a forged collar to maintain the proper shank striking face position in the rock drill. Tapered drill rods effective lengths are measured from the collar to the bit end,which are usually from 0.6 meters to 3.6 meters.
Tapered equipment affords drillers the ability to change drilling bits whilst still using the same drilling rod. Drillers choose tapered button bits for faster drilling penetration rate. Different taper sizes have different characteristics when it comes to the “knock-off” index – the smaller angle will prevent the bit from spinning.
H22 Tapered rock drill steel rod , Blast Hole Drilling Tapered Rod

Performance
H22 Tapered rock drill steel rod has the following advantages
1. Excellent comprehensive mechanical properties
2. High connection strength and sealability
3. High fatigue strength and long fatigue life
4. Good flushing effect to ensure high drilling rate
5. With highly and strength of resistance on the bending, welding fixed.
6. Highly efficiency on production and steady quality.
7. It’s able to keep the hole straight and with long use time.

Application
H22 Tapered rock drill steel rod is mainly used in rock drilling, blasting holes, and drilling works in the quarries, metallic mines, tunneling and constructions.

Details Form

Drill rod	Length		Weight （kg）	HENGLONG P/N
Drill rod	mm	foot	Weight （kg）	HENGLONG P/N
Hex. taperd rod	600	2′	1.93	21H22-7/108-0600-40
	800	2′6″	2.54	21H22-7/108-0800-40
	1000	3′3″	3.15	21H22-7/108-1000-40
	1200	3′9″	3.76	21H22-7/108-1200-40
	1500	4′11″	4.68	21H22-7/108-1500-40
	1600	5′3″	4.98	21H22-7/108-1600-40
	1800	5′9″	5.59	21H22-7/108-1800-40
	2000	6′7″	6.20	21H22-7/108-2000-40
	2200	7′2″	6.81	21H22-7/108-2200-40
	2300	7′6″	7.12	21H22-7/108-2300-40
	2400	7′9″	7.42	21H22-7/108-2400-40
	2500	8′2″	7.73	21H22-7/108-2500-40
	2600	8′8″	8.03	21H22-7/108-2600-40
	3000	9′10″	9.25	21H22-7/108-3000-40

	3500	11′5″	10.78	21H22-7/108-3500-40
	4000	13′1″	12.30	21H22-7/108-4000-40
	4500	14′8″	13.83	21H22-7/108-4500-40
	5000	16′4″	15.35	21H22-7/108-5000-40
	5500	18′1″	16.88	21H22-7/108-5500-40
	6000	19′7″	18.30	21H22-7/108-6000-40
	4000	13′1″	16.1	21H25-7/159-4000-40
	4700	15′4″	18.90	21H25-7/159-4700-40
	5000	16′4″	22.1	21H25-7/159-5000-40
	5500	18′1″	22.1	21H25-7/159-5500-40
	6000	19′7″	24.1	21H25-7/159-6000-40
Hex.22mm Tapered rod,carburizd	610	2′	2.2	21H22-11/108-0610-40
	1220	4′	4.1	21H22-11/108-1220-40
	1830	6′	5.9	21H22-11/108-1830-40
	2435	8′	7.8	21H22-11/108-2435-40
	3200	10′6″	10.1	21H22-11/108-3200-40
	3655	12′	11.5	21H22-11/108-3655-40
	4000	13′1″	12.6	21H22-11/108-4000-40
	4800	15′9″	14.9	21H22-11/108-4800-40
	5600	18′4″	17.4	21H22-11/108-5600-40
	6400	21′	19.8	21H22-11/108-6400-40
	7200	23′6″	22.2	21H22-11/108-7200-40
	8000	26′2″	24.6	21H22-11/108-8000-40
Hex.22mm Tapered rod,carburizd	610	2′	2.20	21H22-12/108-0610-40
	1220	4′	4.10	21H22-12/108-1220-40
	1830	6′	5.90	21H22-12/108-1830-40
	2000	6′7″	6.40	21H22-12/108-2000-40
	2435	8′	7.80	21H22-12/108-2435-40
	2600	8′8″	8.30	21H22-12/108-2600-40
	3200	10′6″	10.10	21H22-12/108-3200-40
	3655	12′	11.50	21H22-12/108-3655-40
	4000	13′1″	12.60	21H22-12/108-4000-40
	4800	15′9″	14.90	21H22-12/108-4800-40
	5600	18′4″	17.40	21H22-12/108-5600-40
	6400	21′	19.80	21H22-12/108-6400-40
	7200	23′6″	22.20	21H22-12/108-7200-40
	8000	26′2″	24.60	21H22-12/108-8000-40
Hex.25mm Tapered rod,carburizd	1830	6′	7.96	21H25-12/159-1830-40
	2435	8′	10.38	21H25-12/159-2435-40
	3050	10′	12.84	21H25-12/159-3050-40
	3655	12′	15.26	21H25-12/159-3655-40
	3965	13′	16.50	21H25-12/159-3965-40
	4270	14′	17.72	21H25-12/159-4270-40
	4880	16′	20.16	21H25-12/159-4880-40
	5530	18′	22.76	21H25-12/159-5530-40
	6095	20′	25.02	21H25-12/159-6095-40

HENGLONG workshop and Process of manufacturing

Packing and shipping

Factory

Customer visit

Production

QUALITY INSPECTION PROCESS

Product quality is one of the core links in the development and growth of Yanggu Henglong Engineering Co., Ltd. Our company has strict internal and external inspection processes to ensure the quality of our products. Our inspection process for our products is as follows.

Tapered Drill Rod