| Condition | New | Color | black or Customized |
| Applicable Industries | Construction works , Energy & Mining, Tunneling | Diameter | 45MM-76MM |
| Video outgoing-inspection | Provided | Thread Type | R25,R28,R32,R38,T38,T45,T51 |
| Machinery Test Report | Provided | Key words | Coupling Sleeve |
| Brand Name | Jcdrill | Application | Mining / Quarrying / Tunneling/Blasting |
| Type | Drill Sleeve | Length | 150MM-235MM |
| Machine Type | Drilling Tool | Formation | Hard / Medium hard / Soft Rock Formation |
| Material | Carbide | Bridge type | Semi-bridge / Full-bridge |
| Processing Type | Forging | Raw Material | High quality alloy steel |
| Use | Mining |
Introduction
Description
Standard coupling using R28 thread system
• R25 thread system
• Widely used in drifting and tunneling
Color: Black or Based on Customer requirements
Material: Tungsten carbide and high strength alloy steel
Processing: CNC milling and proprietary heat treatment process
Type: R28 Standard Coupling
Specification and function of the coupling sleeve:
Full-Bridge Coupling sleeve
Eliminates the potential for the coupling to creep along the threaded joints
Typically used in surface applications
Better uncoupling characteristics and tend to maintain tighter joints
Less chance of jamming
Best suited to machines equipped with independent rotation.
Semi-Bridge Coupling sleeve
Small non-threaded bridge in the center
Steel cannot thread past bridge area
Smaller diameter steel end portions fit together in the centre bridge area of the coupling
Semi-bridged couplings are most suited to high torque machines
Most rope and T threaded couplings are semi-bridged
Same diameter Coupling sleeve
Eliminates the potential for the coupling to creep along the threaded joints
Typically used in surface applications
Better uncoupling characteristics and tend to maintain tighter joints
Less chance of jamming
Best suited to machines equipped with independent rotation.
| R28 | ||||||||
| Drill Bit | Bit Dia. | NO x Button x Dia. | Flushing Hole | Weight | ||||
| mm | inch | Front | Gauge | Angle | Front | Side | （KG） | |
 |
Spherical Buttons | |||||||
| 37 | 1 29/64 | 2x7 | 5x9 | 30° | 1 | 1 | 0.5 | |
| 38 | 1 1/2 | 2x8 | 4x9 | 30° | 1 | 2 | 0.6 | |
| 38 | 1 1/2 | 2x7 | 5x9 | 30° | 1 | 1 | 0.6 | |
| 41 | 1 5/8 | 2x8 | 5x9 | 35° | 1 | 1 | 0.7 | |
| 43 | 1 2/3 | 2x9 | 5x9 | 30° | 1 | 2 | 0.8 | |
| 45 | 1 3/4 | 2x9 | 5x10 | 30° | 1 | 2 | 0.9 | |
| 45 | 1 3/4 | 3x8 | 6x9 | 30° | 1 | 3 | 0.9 | |
| Parabolic Buttons | ||||||||
| 37 | 1 4/9 | 2x7 | 5x9 | 30° | 1 | 1 | 0.5 | |
| 38 | 1 1/2 | 2x8 | 4x9 | 30° | 1 | 2 | 0.6 | |
| 38 | 1 1/2 | 2x7 | 5x9 | 30° | 1 | 1 | 0.6 | |
| 41 | 1 5/8 | 2x8 | 5x9 | 35° | 1 | 1 | 0.7 | |
| 43 | 1 2/3 | 2x9 | 5x9 | 35° | 1 | 2 | 0.8 | |
| 45 | 1 3/4 | 2x9 | 5x10 | 30° | 1 | 2 | 0.9 | |
| 45 | 1 3/4 | 3x8 | 6x9 | 35° | 1 | 3 | 0.9 | |
| 48 | 1 7/8 | 2x9 | 5x11 | 30° | 1 | 2 | 1.0 | |
| 48 | 1 7/8 | 3x8 | 6x9 | 35° | 1 | 3 | 1.0 | |
 |
38 | 1 1/2 | 14x8 | 1 | 2 | 0.6 | ||
| 41 | 1 5/8 | 14x8 | 1 | 4 | 0.7 | |||
| 43 | 1 2/3 | 14x8 | 1 | 4 | 0.7 | |||
| 45 | 1 3/4 | 14x8 | 1 | 4 | 0.9 | |||
| 51 | 2 | 14x8 | 1 | 4 | 1.1 | |||
| Drill Roll | Bit Dia. | Dimaeter | Weight | |||||
| mm | inch | mm | inch | （KG） | ||||
 |
2400 | 7'10" | 28 | 1 1/8 | 12.2 | |||
| 2750 | 9' | 28 | 1 1/8 | 14.4 | ||||
| 3700 | 12'11/2" | 28 | 1 1/8 | 18.9 | ||||
| 4000 | 13'1/8" | 28 | 1 1/8 | 20.4 | ||||
| 4310 | 14'11/2" | 28 | 1 1/8 | 22.0 | ||||
| 4920 | 16'11/2" | 28 | 1 1/8 | 25.3 | ||||
| 2900 | 9'61/8" | 32 | 1 1/4 | 18.8 | ||||
| 3090 | 10'11/2" | 32 | 1 1/4 | 20.0 | ||||
| 3700 | 12'11/2" | 32 | 1 1/4 | 24.0 | ||||
| 4310 | 14'11/2" | 32 | 1 1/4 | 27.9 | ||||
| 3090 | 10'11/2" | 32 | 1 1/4 | 20.0 | ||||
| 3700 | 12'11/2" | 32 | 1 1/4 | 23.5 | ||||
| 3090 | 10'11/2" | 32 | 1 1/4 | 20.0 | ||||
| 3700 | 12'11/2" | 32 | 1 1/4 | 24.0 | ||||
| 4000 | 13'13/8" | 32 | 1 1/4 | 25.9 | ||||
| 4310 | 14'11/2" | 32 | 1 1/4 | 27.9 | ||||
| 3050 | 10' | 28 | 1 1/8 | 15.0 | ||||
| 3050 | 10' | 28 | 1 1/8 | 15.0 | ||||
| Coupling | Bit Dia. | Dimaeter | Weight | |||||
| mm | inch | mm | inch | （KG） | ||||
 |
150 | 5 7/8 | 44 | 1 3/4 | 1.0 | |||
| 150 | 5 7/8 | 40 | 1 37/64 | 0.9 | ||||
| 170 | 6 3/4 | 55 | 2 5/32 | 2.0 | ||||
| 160 | 6 5/16 | 45 | 1 3/4 | 1.2 | ||||
| 160 | 6 5/16 | 56 | 1 13/64 | 2.5 | ||||
Picture
| Minimum Order Quantity | N/A |
| Price | |
| Packaging Details | Standard Export Delivery Package |
| Delivery Time | 7days |
| Payment Terms | T/T |
| Supply Ability | Based on Detailed Order |
