Rotary Capping Head

Product Specifications

Technical details and manufacturing context for Rotary Capping Head

Definition

The rotary capping head is a critical component of a high-speed rotary bottle capping machine. It is mounted on the machine's rotating turret and is responsible for picking up caps from a cap chute, placing them onto bottle necks, and applying the correct torque to securely seal the caps. Each head operates independently and can be adjusted for different cap sizes and torque requirements. The head is typically constructed from stainless steel, alloy steel, and engineering plastics, with food-grade contact parts made of 304 stainless steel. It is designed to handle cap diameters from 20 to 70 mm and bottle heights from 80 to 300 mm, with a capping speed of 60 to 300 bottles per minute. The capping torque is adjustable from 0.5 to 5.0 N·m, with an accuracy of ±3%. The head requires a pneumatic supply of 0.4 to 0.6 MPa, consuming 0.1 to 0.3 m³/min of air. Electrical power is supplied at 220–380 V AC (50/60 Hz, three-phase), with a power consumption of 0.75 to 2.2 kW. The operating temperature range is 5 to 45 °C, and relative humidity should be 30 to 85% non-condensing. The ingress protection rating is IP54 per IEC 60529. The weight ranges from 15 to 25 kg depending on configuration. These values are reference ranges and must be verified for the specific model and application with the legal manufacturer or supplier. The head is designed for integration into rotary capping machines and is not a standalone unit. Proper installation, adjustment, and maintenance are essential for reliable operation. Always consult the manufacturer's documentation for specific installation, operation, and maintenance procedures.

Working Principle

As the machine's turret rotates, each capping head aligns with a bottle. A cap is fed into the head's chuck or gripper mechanism. The head descends onto the bottle neck, the gripper secures the cap, and a torque-controlled spindle (often driven by a clutch or servo motor) rotates to screw the cap onto the bottle threads to a preset tightness. The head then releases the cap and retracts.

Common Materials

Stainless Steel, Alloy Steel, Engineering Plastics

Technical Parameters

Parameter	Typical range	Notes & selection driver
Capping Torque	0.5–5.0 N·m	Adjustable per cap size and material
Capping Speed	60–300 bottles/min	Depends on bottle diameter and thread pitch
Cap Diameter Range	20–70 mm	Interchangeable chucks for different sizes
Bottle Height Range	80–300 mm	Adjustable height for different bottle sizes
Torque Accuracy	±3 %	Consistent cap tightness
Operating Pressure	0.4–0.6 MPa	Pneumatic system requirement
Air Consumption	0.1–0.3 m³/min	At 0.5 MPa operating pressure
Power Supply	220–380 V AC	50/60 Hz, three-phase
Power Consumption	0.75–2.2 kW	Motor and control system
Operating Temperature	5–45 °C	Avoid condensation
Relative Humidity	30–85 %	Non-condensing
Ingress Protection	IP54	Dust and splash water protectedIEC 60529
Material	304 stainless steel	Food-grade contact partsASTM A240
Weight	15–25 kg	Depending on configuration

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

Components / BOM

Spindle
The rotating shaft that applies torque to the cap. Often contains the drive mechanism and torque control system.

Material: Alloy Steel
Chuck / Gripper Jaws
Mechanism that securely holds the cap during the pick-up and placement operation. Adjustable for different cap sizes.

Material: Hardened Steel or Engineering Plastic
Torque Clutch or Servo Drive
The mechanism that controls and limits the applied tightening torque to ensure consistent seal quality without damaging the cap or bottle.

Material: Steel, Electronic Components
Height Adjustment Mechanism
Allows vertical adjustment of the head to accommodate bottles of different heights.

Material: Stainless Steel

Manufacturers of Rotary Capping Head

Manufacturer profiles associated with Rotary Capping Head.

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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 · Page last updated 16 September 2026

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Frequently Asked Questions

What is the typical torque range for this capping head?

The capping torque is adjustable from 0.5 to 5.0 N·m, with an accuracy of ±3%. The exact setting depends on the cap size and material, and should be verified for your specific application.

What cap diameters and bottle heights can this head handle?

The head accommodates cap diameters from 20 to 70 mm and bottle heights from 80 to 300 mm. Interchangeable chucks are used for different cap sizes, and the height is adjustable for different bottle sizes.

What are the utility requirements for this component?

It requires a pneumatic supply of 0.4–0.6 MPa with air consumption of 0.1–0.3 m³/min, and electrical power of 220–380 V AC (50/60 Hz, three-phase) with power consumption of 0.75–2.2 kW. Operating temperature should be 5–45 °C and relative humidity 30–85% non-condensing.

What materials are used in the construction?

The head is made from stainless steel, alloy steel, and engineering plastics. Food-grade contact parts are 304 stainless steel per ASTM A240. The ingress protection rating is IP54 per IEC 60529.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0-5 bar
other spec:	Cap diameter range: 15-120 mm, Torque range: 0.5-25 Nm, Speed: 10-200 cpm
temperature:	-10°C to 80°C

Product Specifications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards