Hand crank handle: Torque Capacity 50-200 Nm, Weight 0.5-2.5 kg

Component Specifications

Definition

A hand crank handle is a mechanical component designed for manual operation, typically featuring a rotating arm attached to a shaft. It converts human rotational force into torque, which drives actuators to produce linear or rotary motion in machinery. This component serves as a backup or primary manual control system in automated equipment, allowing operation during power failures or for precise manual adjustments.

Working Principle

The hand crank handle operates on the principle of leverage and torque transmission. When rotated by an operator, the handle's arm length multiplies the applied force, creating mechanical advantage. This torque is transferred through the shaft to the actuator's drive mechanism (such as a screw, gear, or linkage system), converting rotational motion into controlled linear displacement or precise positioning of machine components.

Materials

Typically manufactured from carbon steel (AISI 1045), stainless steel (AISI 304/316 for corrosion resistance), or aluminum alloy (6061-T6 for lightweight applications). Grip surfaces may include thermoplastic elastomers or rubber coatings for ergonomics and slip resistance.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Weight	0.5-2.5 kg
Handle Length	150-400 mm
Rotation Range	Unlimited continuous or limited by mechanical stops
Shaft Diameter	10-25 mm
Torque Capacity	50-200 Nm
Operating Temperature	-20°C to +80°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 2768, DIN 6885

Parent Products

This component is used in the following industrial products

Actuator (Motor, Hand Crank, or Pneumatic Cylinder)

A mechanical device that converts energy into motion to drive the height adjustment mechanism.

View Product Details

Engineering Analysis

Risks & Mitigation

Operator injury from sudden release of stored energy
Mechanical failure due to over-torquing
Entanglement hazards with rotating components
Ergonomic strain from repetitive manual operation

FMEA Triads

Trigger: Excessive torque application beyond rated capacity
Failure: Shaft deformation or fracture
Mitigation: Install torque limiters and provide clear maximum torque labeling

Trigger: Corrosion in humid environments
Failure: Seized rotation mechanism
Mitigation: Use corrosion-resistant materials and apply protective coatings

Trigger: Improper installation alignment
Failure: Premature bearing wear and vibration
Mitigation: Implement precise alignment procedures and use dial indicators during installation

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Shaft diameter: ±0.05 mm, Handle concentricity: 0.1 mm TIR

Test Method

Torque testing per ISO 898-1, fatigue testing with 100,000 cycles at 75% rated load, corrosion resistance per ASTM B117 salt spray test

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Hand crank handle

Manufacturer profiles associated with Hand crank handle.

Sourcing Hand crank handle from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

Related Components

Upper Tool (Punch)

Upper Tool (Punch) is the active forming component in metal plate bending machines that applies precise downward force to create bends in sheet metal.

Main Frame

The main frame is the primary structural component of a hydraulic press, providing rigidity and stability to withstand high compressive forces during metal forming operations.

Shaft Bearing

Precision component supporting rotating shafts in vibration motors to reduce friction and maintain alignment.

Seal Groove

Precision-machined groove in aluminum bearing housings designed to accommodate sealing elements for fluid containment and contamination prevention.

Frequently Asked Questions

When should a hand crank handle be used instead of motorized actuation?

Hand crank handles are essential for emergency manual override during power failures, for precise manual adjustments in calibration procedures, in hazardous environments where electrical components are prohibited, or as cost-effective solutions for low-frequency operations.

What safety features should industrial hand crank handles include?

Critical safety features include slip-resistant grips, torque limiters to prevent overloading, locking mechanisms to secure positions, clearly marked rotation directions, and guards to prevent entanglement with moving machinery.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Hand crank handle