Mincon MP35 Hammer

The Mincon MP35 hammer is designed around proven technology to perform at the top end of the performance scale compared to other tools on the market. These tools are excellent for all types of drilling applications including residential geothermal, production quarry drilling, seismic drilling and small construction drilling.
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Key Features and Benefits

  • Patented features maximize energy output and reduce service requirements.
  • Fewer internal components minimize service requirements.
  • Valveless, high frequency design ensures smooth operation.
  • Hardened wear sleeve for optimum wear resistance even in the most abrasive conditions.
  • Multi-start threads on backhead and chuck ensure easy coupling/uncoupling of hammer.
  • Unique internal mount system eliminates the need for wear shims and special assembly tools.
  • All critical internal components are heat treated under strict control to maximize tool longevity.

For more information:

+40 314 253 800
info@romned.ro

Ron van Dam
CEO

Specifications Metric Imperial
Hammer Outside Diameter 85mm 3.35″
Hammer Length (Less Bit, Backhead Shoulder to Chuck) 805mm 31.7″
Backhead Spanner Flat Size 64mm 2.5″
Drill Bit Shank Type MD 3.5
Minimum Bit Size 95mm 3.75″
Hammer Weight (Less Bit) 24.5Kgs 54Lbs
Drill Bit Weight (95mm/3.75″) 5.4Kgs 12Lbs
Piston Weight 3.9Kgs 8.7Lbs
Backhead Stand Off 0.75mm 0.030″
Make up Torque 3050-4050 NM 2250-3000 FT Lbs
Wear Sleeve Reverse Limit Non Reversible
Wear Sleeve Discard Limit 79.0mm 3.110″
Recommended Minimum Air Package 47 l/s @ 6.9 Bar 100 cfm @ 100 psi
Item # Part Number Description
MB301AS03 Mincon MP35 (2 3/8″ A.P.I. Reg. Pin)
1 MB301BH03 Backhead (2 3/8″ A.P.I. Reg. Pin)
2 MB506CH01 Choke Blank
3 MB302CV03 Check Valve
4 MB503SP01 Spring
5 MB304SM02 Steel Make-Up Ring
6 MB305LR01 Lock Ring
7 MB307DR01 Air Distributor
8 MB321OR01 O Ring
9 MD422OR01 O Ring
10 MB309SR01 Seating Ring
11 MB308IC02 Inner Cylinder
12 MB310PN01 Piston
13 MB311WS02 Wear Sleeve
14 MB312PR01 Piston Retaining Ring
15 MB317BS01 Bit Retaining Spacer
16 MB313BR02 Bit Retaining Ring
17 MB320OR01 O Ring
18 MB314CK03 Chuck (MD3.5)
19 MB326SK01 Service Kit
MB326SK01 Service Kit
2 MB506CH01 Choke Blank
MB506CH02 Choke 1/8″ (3.2mm)
MB506CH03 Choke 3/16″ (4.8mm)
4 MB503SP01 Spring
MB325OK01 O Ring Kit
MB325OK01 O Ring Kit
8 MB321OR01 O Ring
9 MD422OR01 O Ring
17 MB320OR01 O Ring

3 5 MP35 AC 

Air Pressures are given for compressors operating at seal level at 20° C (68º F). Corrections to actual compressor volume should be made to account for temperature, altitude and relative humidity.

DTH hammers must receive a constant supply of proper rock drill oil to protect the internal components and to provide a good air seal between the hammer’s running surfaces for efficient drilling. Mincon recommends the use of Mincon Envirosafe® Rock Drill Oil (RDO) to maintain optimal performance and extend the life of the internal components. The correct consumption of oil is dependent upon the air volume and conditions. Please refer to the lubrication graph below for recommendations. When drilling in wet conditions the normal amount should be doubled. There should be visual evidence of oil around the drill bit shank and within the tube joints when changing tubes.

If using petroleum based rock drill oils, the recommended grade of oil is dependent on the ambient temperature and the operating pressure. As a rule of thumb, ISO320 grade rock drill oil should be used whenever possible as the hammer is a high frequency tool, however, where the pump cannot pump the oil in colder conditions, a lower grade of oil can be used as per the graph below.

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Note: The Part Numbers below require the Carbide Insert type code to be added on the end to complete them. For a combination of carbide inserts use the gauge row code first and then the face code.

Diameter Face Type Part Number No. x Button Dia (inch) Flushing holes Weight Approx.
mm inch Outer Inner Front Kgs. Lbs.
95 3 3/4 Concave 36MD35C78 7 – 7/16″ 4 – 7/16″ 2 – 7/16″ 2 5 11
95 3.75 Flat Face 36MD35F18 8 – 1/2″ 6 – 7/16″ 2 5 11
95 3.75 Convex 36MD35V17 7 – 1/2″ 3 – 1/2″ 2 – 1/2″ 2 5 11
98 3.875 Concave 37MD35C78 8 – 7/16″ 4 – 7/16″ 2 – 7/16″ 2 5.9 13
98 3 7/8 Flat Face 37MD35F96 6 – 9/16″ 6 – 1/2″ 2 5.9 13
98 3 7/8 Convex 37MD35V78 8 – 7/16″ 4 – 7/16″ 4 – 7/16″ 2 5.9 13
102 4 Concave 40MD35C78 8 – 7/16″ 4 – 7/16″ 4 – 7/16″ 2 6.4 14
102 4 Flat Face 40MD35F78 8 – 7/16″ 7 – 7/16″ 2 6.4 14
105 4 1/8 Concave 41MD35C78 8 – 7/16″ 4 – 7/16″ 4 – 7/16″ 2 6.8 15
105 4 1/8 Convex 41MD35V78 8 – 7/16″ 4 – 7/16″ 4 – 7/16″ 2 6.8 15