3 Alice Street
BASSENDEAN (Perth) 6054, Western Australia
Ph: +61 8 9279 5522 Fax: +61 8 9279 9386
BASSENDEAN (Perth) 6054, Western Australia
Ph: +61 8 9279 5522 Fax: +61 8 9279 9386
Products
- Gearing
- Mining Equipment
- Mills & Kilns
- Wind Turbine
- Sugar Mills
- High Tension Fasteners
- Slew Bearings
- Oil and Gas
- Onsite Services
- Portable Machine Tools
- Valves and Pumps
- Replacement Parts
- Metallurgical Services
- Workshop Capacities
- Terms and Conditions
- Used Machine Sales
Hofnut - The High Tension Bolting Solution
TYPICAL APPLICATIONS
- Girth Gear Split Lines.
- Gearbox Split Lines.
- Pressure Vessels.
- Hold-Down Bolts.
- Engine Blocks.
- * ANY LARGE BOLTING APPLICATION *
Hofnuts enable you to:
- Tighten large nuts with hand wrenches.
- Tighten split joints accurately to the correct tension.
- Minimal space requirements.
Removes the need to use:
- Hydraulic tensioning.
- Crane wrenches.
- Other cumbersome methods of tightening.
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STOCKED BLANKS
FOR QUICK DELIVERY
Hofmann Engineering holds in stock a range of sizes of HofNuts with unthreaded bores to assist in the minimisation of lead time in the production of a customer’s specific requirements. These blanks can accommodate any size and/or pitch between 33mm and 72mm.
Hofmann Engineering holds in stock a range of sizes of HofNuts with unthreaded bores to assist in the minimisation of lead time in the production of a customer’s specific requirements. These blanks can accommodate any size and/or pitch between 33mm and 72mm.
MIS-ALIGNMENT
SOLUTIONS
SPHERICAL SEATS
The use of spherical seats allows the tensioning of bolts that may be out of alignment, ensuring that your equipment remains tensioned securely. The spherical seats can be subjected to almost twice the force that can be exerted upon them by a fully tensioned HofNut, while still maintaining their own structural integrity.
SPHERICAL SEATS
The use of spherical seats allows the tensioning of bolts that may be out of alignment, ensuring that your equipment remains tensioned securely. The spherical seats can be subjected to almost twice the force that can be exerted upon them by a fully tensioned HofNut, while still maintaining their own structural integrity.
BOLTING LUBRICATION
For ease of lubrication, each set of HofNuts comes with a tube of lubricant for use on the jacking bolt threads and between the tips and the washer.
For ease of lubrication, each set of HofNuts comes with a tube of lubricant for use on the jacking bolt threads and between the tips and the washer.
SPLIT LINE CLAMPING
It is essential to keep the split line tightly closed to keep the root area of the split line tooth under compression throughout operation. This provides support for the tooth and hence prevents it from deflecting and fatigue cracking. When using HofNuts, the operating forces must first overcome the applied bolting forces before any deflection of the split line can occur.
It is essential to keep the split line tightly closed to keep the root area of the split line tooth under compression throughout operation. This provides support for the tooth and hence prevents it from deflecting and fatigue cracking. When using HofNuts, the operating forces must first overcome the applied bolting forces before any deflection of the split line can occur.
GRADE HSN 41
STANDARD
The HSN 41 HofNuts are used for general mechanical applications. It is standard to see these nuts on the split lines of our girth gears as well as the split lines on both our newly manufactured or refurbished gearboxes. A range of sizes are kept in stock for quick delivery for a customer’s requirements.
STANDARD
The HSN 41 HofNuts are used for general mechanical applications. It is standard to see these nuts on the split lines of our girth gears as well as the split lines on both our newly manufactured or refurbished gearboxes. A range of sizes are kept in stock for quick delivery for a customer’s requirements.
GRADE HSN 43
EXTRA HIGH TENSION
For high tension applications, we recommend our HSN 43 Grade HofNuts, which are manufactured from a higher grade of steel and contain more jacking bolts.The 43 series can apply up to 50% more force to a split line when used with the appropriately rated bolt.
EXTRA HIGH TENSION
For high tension applications, we recommend our HSN 43 Grade HofNuts, which are manufactured from a higher grade of steel and contain more jacking bolts.The 43 series can apply up to 50% more force to a split line when used with the appropriately rated bolt.