Hydraulic Nuts

F-8 Series
F-9 Series

Amtec Hydraclamp™ Hydraulic Clamping Nuts are suitable for steel slitters, side trimmers, choppers and roll-forming lines, which all benefit from the exceptional safety, convenience, efficiency and highly controllable clamping.

Amtec Hydraulic Nuts safely and conveniently replace major mechanical nuts on all types of metal processing lines by eliminating sledge hammers and heavy wrenches, which cause much of the strain and physical injury to the set-up personnel. Bearing damage from hammering nuts is eliminated with Amtec Hydraclamp™ Hydraulic Clamping Nuts. By using Amtec High Pressure Handpumps to pressurize the Amtec Nuts, positive, controlled clamping force is applied with every installation to ensure reliably accurate tooling set-ups. 100% of all effort to pressurize Amtec Hydraulic Nuts is converted to clamping force, eliminating friction on threads which is the prime cause of early thread wear.

All Amtec F-Type Nuts are activated by grease to suit operating specifications. Amtec F-Type Nuts offer self-aligning, annular thrust rings, which create a high force lock to prevent unthreading once pressure is applied.

The extreme internal pressure pushes the thrust ring against the mating tooling and simultaneously forces the nut body to locate against the arbor or shaft threads. Therefore, all threads may be right hand rotation regardless of whether the arbor or shaft rotation is clockwise or counterclockwise. Amtec will custom manufacture all F-Type Nuts to any existing thread form, regardless of thread hand, provided the thread form conforms to international standards.

To compensate for increased weight in larger sized nuts, we offer aircraft grade aluminum nut models at 50-60% the weight of our standard high-strength steel. Comparable durability, performance and quality are guaranteed with all aluminum nuts, although maximum pressure is reduced from 700 bar to 400 bar.

Amtec F-Type Nuts are manufactured from 4140 chromoly steel or aircraft aluminum.

• Standard black oxide finish for 120°C max.(250°F)
• Special finishes for service up to 240°C max.(460°F)
• 4140 alloy tool steel or QC-10 aircraft aluminum body parts
• Stainless steel, electroless nickel or chromium plating for optional corrosion resistance
• Unidirectional, all steel, high-pressure F-NIPPLE
• All components rated at 840 bar max. (12,180 psi)
• Aluminum nuts are more than half the weight as steel

K-6 Series
K-7 Series
K-025 Series

Amtec Hydraclamp™ Hydraulic Clamping Nuts are suitable for steel slitters, side trimmers, choppers and roll-forming lines, which all benefit from the exceptional safety, convenience, efficiency and highly controllable clamping.

Amtec Hydraulic Nuts safely and conveniently replace major mechanical nuts on all types of metal processing lines by eliminating sledge hammers and heavy wrenches, which cause much of the strain and physical injury to the set-up personnel. Bearing damage from hammering nuts is eliminated with Amtec Hydraclamp™ Hydraulic Clamping Nuts. Our piston activated hydraulic nuts provide positive, controlled clamping force applied with every installation to ensure reliably accurate tooling set-ups. Using hydraulic energy to create clamping force eliminates friction on threads, which is the prime cause of early thread wear.

All Amtec K-Type Nuts are actuated by pistons pressurizing a grease medium. Amtec K-Type Nuts offer self-aligning, annular thrust rings that create a high force to prevent unthreading once pressure is applied. The extreme internal pressure pushes thrust rings against the mating tooling and simultaneously forces the nut body to locate against the arbor or shaft threads. Therefore, all threads may be right hand rotation regardless of clockwise or counterclockwise shaft or arbor rotation.

Amtec will custom manufacture all K-Type Nuts to any existing thread form, regardless of thread hand, provided the thread form conforms to international standards. Amtec K-Type Nuts are manufactured from 4140 chromoly steel to withstand up to 700 bar (10,150 PSI) without stress or fatigue. All Amtec K-nuts are available with indicator pins that pop up when clamping pressure is met.

• Standard black oxide finish for 120°C max. (250°F)
• Alloy tool steel body parts
• Stainless steel, electroless nickel or chromium
• Plating for optional corrosion resistance
• Self-aligning annular thrust ring
• Clean, efficient, hand-operated clamping system

GX-4 Series
GX-5 Series

Amtec Hydraclamp™ Heavy Duty Hydraulic Nuts are suitable for extreme applications requiring high clamping force and rapid setup speed. GX-Nuts are suitable for casters, gearbox and pinion stands, plate mill side trimmers and tube mills.

Amtec Hydraclamp™ Heavy Duty Hydraulic Nuts are suitable for extreme applications requiring high clamping force and rapid setup speed. GX-Nuts are suitable for casters, gearbox and pinion stands, plate mill side trimmers and tube mills.

Amtec Hydraulic Nuts safely and conveniently replace major mechanical nuts on all types of metal processing lines by eliminating sledge hammers and heavy wrenches, which cause much of the strain and physical injury to the set-up personnel. Bearing and bolt damage from hammering nuts is eliminated with GX-Type Hydraulic Nuts. By using Amtec High Pressure Oil Handpumps or Hydraulic Power Units to pressurize the Amtec Nuts, positive, controlled clamping force ensures reliably accurate tooling set-ups with every installation. 100% of all effort to pressurize GX-Type Nuts is converted to clamping force, eliminating friction on threads, which is the prime cause of early thread wear.

All Amtec GX-Type Nuts are activated by oil to suit operating specifications. Amtec GX-Type Nuts offer self-aligning, annular thrust rings that create a high force lock to prevent unthreading once pressure is applied.

The extreme internal pressure pushes the thrust ring against the mating tooling and simultaneously forces the nut body to locate against the plate, bearing or shaft threads. Therefore, all threads may be right hand rotation regardless of whether an arbor or shaft rotation is clockwise or counterclockwise. Amtec will custom manufacture all GX-Type Nuts to any existing thread form, regardless of thread hand, provided the thread form conforms to international standards.

To compensate for increased weight in larger sized nuts, we offer aircraft grade aluminum nut models at half the weight of our standard high strength steel. Comparable durability, performance and quality are guaranteed with all aluminum nuts, although maximum pressure is reduced from 700 bar to 400 bar.

Amtec GX-Type Nuts are manufactured from 4140 chromoly steel or QC-10 aircraft aluminum. 

• Standard black oxide finish for 120°C max.(250°F)
• Special finishes for service up to 240°C max.(460°F)
• 4140 alloy tool steel or QC-10 aircraft aluminum body parts
• Stainless steel, electroless nickel or chromium plating for optional corrosion resistance
• Unidirectional, all steel, high pressure GX-Nipple
• All components rated at 840 bar max. (12,180 psi)
• Aluminum nuts are half the weight of steel

H-2 Series
H-3 Series

Amtec Hydraclamp™ Hydraulic Clamping Nuts are suitable for cross cut shears, choppers and utilities, which all benefit from the exceptional safety, convenience, efficiency and highly controllable clamping.

Amtec Hydraclamp™ Hydraulic Clamping Nuts are suitable for cross cut shears, choppers and utilities, which all benefit from the exceptional safety, convenience, efficiency and highly controllable clamping.

Amtec Hydraulic Nuts safely and conveniently replace major mechanical nuts on all types of metal processing line shears. It eliminates sledgehammers and heavy wrenches, which cause much of the strain and physical injury to the set-up personnel. By using Amtec high-pressure handpumps or high-pressure power units to pressurize Amtec H-Type nuts, positive, controlled clamping force is applied with every installation to ensure reliably accurate tooling set-ups. Amtec’s Rapid Shear Knife Change- Over system secures shear blades firmly while allowing exceptionally quick knife replacement.

100% of all effort to pressurize Amtec Hydraulic Nuts is converted to clamping force, eliminating friction on threads, which is the prime cause of early thread wear. All Amtec H-Type Nuts can activate with hydraulic pressure to suit operating specifications. Amtec H-Type Nuts offer self-aligning, annular thrust rings, which create a high force lock to prevent unthreading once pressure is applied. The extreme internal pressure pushes thrust rings against the mating tooling and simultaneously forces the nut body to locate against the arbor or shaft threads. Therefore, all threads may be right hand regardless of whether the arbor or shaft rotation is clockwise or counterclockwise. Amtec customizes all H-Type Nuts to any existing thread form, regardless of thread hand, provided the thread form conforms to international standards.

We offer aircraft-grade aluminum nut models at 40-50% the weight of our standard high strength steel to compensate for increased weight in larger sized nuts. Comparable durability, performance and quality are guaranteed with all-aluminum nuts, although we reduce maximum pressure from 700 bar to 400 bar. Precise tolerance control on all equipment is critical under current market conditions. We manufacture Amtec H-Type Nuts from 4140 chromoly steel or QC-10 aircraft aluminum. 

• Standard black oxide finish for 120°C max.(250°F)
• Special finishes for service up to 240°C max.(460°F)
• Alloy tool steel body parts
• Stainless steel, electroless nickel or chromium plating for optional corrosion resistance
• BSPP or SAE O-ring boss ports
• All components rated at 840 bar max. (12,180 psi)
• Aluminum nuts are half the weight as steel