High-Quality Blast Hole Drilling Hex22 7/11/12 Tapered Drill Rod for Mining and Tunnelling Manufacturer, Factories

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High-Quality Blast Hole Drilling Hex22 7/11/12 Tapered Drill Rod for Mining and Tunnelling Manufacturer, Factories

Product Details

Customization:	Available
After-sales Service:	Repair or Replacement
Warranty:	6 Months

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Product Description

📋 Basic Information

Model NO.:

Hex22

Certification:

ISO 9001:2000, ISO 9001:2008

Standard:

Surface Treatment:

Spray-Paint

Manufacturing Process:

Forging

Material:

Carbon Steel

Degree:

7/11/12

Machine Type:

Drilling Tools

Color:

Red, Black, Yellow, White

Material Quality:

95crmo, 55simnmo, 40simncrnimo, 23crni3mo, D6a

Origin:

China

Production Capacity:

500,000 PCS/Month

📦 Packaging & Delivery

Package Size:

30.00cm * 30.00cm * 30.00cm

Gross Weight:

5.000kg

Transport Package:

Wooden Case

📝 Product Description

Taper drill rod is specifically engineered for rock drilling, blasting holes, and other demanding drilling tasks in quarries, coal mines, and traffic construction projects. Designed to work seamlessly with taper drill bits, these rods are available in various lengths to suit diverse applications.

Our taper drill rods are manufactured with multiple taper angles. Generally, light-duty rock drills utilize a 7° taper or smaller, while heavy-duty rock drills primarily use 11° or 12° taper angles. A critical operational requirement is that the taper drill rods and taper drill bits must share the same tapered degree for optimal performance and safety. We offer a full range of shank configurations and steel hex diameters to meet all hand-held pneumatic drilling requirements.

Technical Specifications:

Steel Grade: 95CrMo (equivalent to SANDBAR 20 or C253), Z708, Sanbar 23, 55SiMnMo.
Shank Sizes: Hex 22mm × 108mm, 22mm × 159mm, 22mm × 80mm, 25mm × 108mm, 25mm × 159mm.
Taper Angles: 4°46′, 6°, 7°, 11°, 12°, etc.
Length Range: 0.4m to 10m.

Standard Config: Shank hex. 22 mm (7/8") x 108 mm (4 1/4"). Rod hex. 22 mm (7/8). Flushing hole diameter 6.7 mm

ROD CROSS SECTION	Length (mm / foot-inch)		Weight approx. (kg)
4°46′ Taper Angle
22H	800	2′7½″	2.8
22H	1600	5′3″	5.3
22H	2400	7′10½″	7.7
22H	4000	13′1½″	12.7
7° Taper Angle
22H	400	1′3¾″	1.6
22H	1830	6′	6.0
22H	3050	10′	9.7
22H	8000	26′3″	24.9
11° Taper Angle
22H	1220	4′	4.1
22H	2435	8′	7.8
22H	4800	15′9″	15.1
22H	7200	23′7½″	22.5
12° Taper Angle
22H	610	2′	2.2
22H	2000	6′6¾″	6.5
22H	3655	11′11⅝″	11.6
22H	5600	18′4½″	17.5

❓ Frequently Asked Questions

1. What are the primary applications for these taper drill rods?

Taper drill rods are primarily used for rock drilling, creating blasting holes, and other excavation tasks in quarries, coal mines, and infrastructure construction.

2. Which steel grades are used in the manufacturing of the rods?

We use high-quality steel grades including 95CrMo (equivalent to SANDBAR 20), Z708, Sanbar 23, and 55SiMnMo to ensure durability and strength.

3. How do I choose the correct taper angle for my project?

Generally, light-duty rock drills use a 7° taper or smaller. For heavy-duty operations, 11° and 12° taper angles are standard. Always ensure the rod and bit have matching angles.

4. What shank sizes are available?

Common sizes include Hex 22mm and Hex 25mm, with various lengths such as 108mm and 159mm to fit different pneumatic drilling equipment.

5. How are the drill rods packaged for international shipping?

The products are securely packed in wooden cases or bundles to prevent damage during transit, ensuring they arrive in perfect condition.

6. What is the monthly production capacity for this model?

Our facility has a robust production capacity of approximately 500,000 pieces per month to meet large-scale industrial demands.