benlong 
Automatic Capping Machine
The automatic capping machine is a high-efficiency piece of equipment designed primarily for the automatic capping of various types of bottles. It is suitable for capping bottles of different shapes across industries such as food, pharmaceuticals, household chemicals, pesticides, and cosmetics.
Automatic Capping Machine
Benlong Automation is one of the specialist automatic capping machine manufacturers serving the food, pharmaceutical, daily chemical, pesticide and cosmetics industries. This inline automatic capping machine tightens screw caps, tamper‑evident caps, child‑resistant caps and press‑in caps onto glass or plastic bottles with a mouth diameter of 45–85 mm and a height of 65–190 mm, at an output of 40–120 bottles per minute. Built on a linear, line‑integrated frame, it pairs an imported frequency converter for stepless speed regulation with a high‑power electromagnetic left‑hand torque unit and a constant‑torque capping head, so every cap is tightened evenly.
This machine is widely used in manufacturing plants within the food and pharmaceutical sectors. It features a simple, cost-effective design and ease of operation, resulting in significant savings on labor costs. Thanks to capabilities such as variable speed control, constant-torque capping heads, and compatibility with a wide range of cap and bottle sizes, the machine is suitable for a diverse array of products. Certain models also offer optional stepper or servo control systems to ensure precise control over torque and capping angles.
Output 40–120 bottles/min | Inovance motor · MCGS or WEINVIEW HMI | Even, repeatable cap tightness
Technical Specifications
| Capping speed | 40 – 120 bottles / minute |
|---|---|
| Bottle mouth diameter | 45 – 85 mm |
| Bottle height | 65 – 190 mm |
| Compatible cap types | Screw cap, tamper‑evident cap, child‑resistant cap, press‑in cap |
| Bottle material | Glass or plastic |
| Machine design | Linear (inline), production‑line integration |
| Speed regulation | Stepless, via imported frequency converter |
| Capping head | Constant‑torque with electromagnetic left‑hand torque unit |
Additional Specifications
| Dimensions (L × W × H) | 2800 × 950 × 1800 mm |
|---|---|
| Weight | 600 – 850 kg |
| Motor power | 0.37 kW |
| Motor brand | Inovance |
| HMI | MCGS or WEINVIEW |
| Application industries | Food, pharmaceutical, daily chemical, pesticide, cosmetics |
| Selected‑model features | Stepper‑servo torque & angle control; continuous / uncapping / cycle modes; open‑close ≤ 2 s per unit; Φ12–35 mm tube compatibility; DC24V safe voltage for biosafety cabinets; automatic / manual modes |
What Does the Automatic Capping Machine Do?
Manual and single‑format cappers cannot hold a consistent torque across different caps and bottles, which leads to leaks, cross‑threading and rejected units. Frequent product changes also mean slow, manual adjustment. This automatic capping machine addresses these issues through:
- Constant‑torque capping head – A high‑power electromagnetic left‑hand torque unit applies a uniform, repeatable force so caps are neither loose nor over‑tightened.
- Stepless speed regulation – An imported frequency converter matches the capping rate to the upstream filling line, from 40 to 120 bottles per minute.
- Multi‑format compatibility – Handles screw, tamper‑evident, child‑resistant and press‑in caps on 45–85 mm bottle mouths and 65–190 mm bottle heights.
Even cap tightnessElectromagnetic left‑hand torque unit and constant‑torque head keep every cap within the same tightness range, reducing leaks and rejects.
Stepless speedImported frequency converter gives infinitely variable speed from 40 to 120 bottles per minute to match line throughput.
Wide format rangeSuits glass or plastic bottles of 45–85 mm mouth diameter and 65–190 mm height, across four common cap types.
Line integrationLinear design drops straight into existing filling and labeling lines for continuous inline production.
Key Features & Customer Benefits
Core Customer Benefits – Why Manufacturers Choose This Machine
Benefit 1: Consistent, leak‑free cap tightness
The electromagnetic left‑hand torque unit and constant‑torque head apply the same force to every cap, removing the loose‑or‑over‑tight variation that causes leaks, transit failures and cross‑threaded rejects.
Benefit 2: Speed that matches your line
Stepless regulation through the imported frequency converter lets the machine run anywhere from 40 to 120 bottles per minute, so capping keeps pace with filling and labeling without bottlenecks.
Benefit 3: One machine, many formats
With a 45–85 mm mouth range, 65–190 mm height range and four supported cap types, a single machine covers a broad product mix and simplifies changeover between SKUs.
Benefit 4: Precise control on selected models
Stepper‑servo versions add exact torque and angle control with continuous, uncapping and cycle modes, plus a DC24V safe‑voltage design suited to biosafety‑cabinet and laboratory use.
Trusted by industry leaders
Applications – Where This Machine Adds Most Value
Custom Engineering & Delivery
Request an Automatic Capping Machine Quote
Send us your bottle and cap samples with your target output and cap types. Our engineers will recommend the right capping head, feeding method and control package — including whether a stepper‑servo model suits your application.
WhatsApp: +86 150 5837 0007 | Email: xsb@benlongkj.cn | English & Chinese support
Why Choose Benlong as Your Automatic Capping Machine Manufacturer?
- A dedicated automation builder among China’s automatic capping machine manufacturers for the food, pharma, cosmetics and agrochemical sectors
- Constant‑torque capping head with electromagnetic left‑hand torque unit for even tightness
- Imported frequency converter for stepless 40–120 bottles/min speed regulation
- Inovance motor and MCGS or WEINVIEW HMI for stable, serviceable control
- Linear design for direct integration into existing filling and labeling lines
- Global service and spare‑parts support
Standard Machine Includes
Constant‑torque capping head · Electromagnetic left‑hand torque unit · Imported frequency converter (stepless speed) · Inovance 0.37 kW motor · MCGS or WEINVIEW HMI · Linear line‑integration frame · Safety guarding · Operation manual · 1‑year warranty
Related solutions
Frequently Asked Questions
Glass or plastic bottles with a mouth diameter of 45–85 mm and a height of 65–190 mm, using screw, tamper‑evident, child‑resistant or press‑in caps.
40–120 bottles per minute, adjusted steplessly through the imported frequency converter to match the speed of your filling line.
A high‑power electromagnetic left‑hand torque unit drives a constant‑torque capping head, applying the same repeatable force to every cap to prevent loose or over‑tightened caps.
Yes. The linear design is built for inline integration. Selected stepper‑servo models add precise torque and angle control with continuous, uncapping and cycle modes for laboratory and biosafety‑cabinet use.
The machine measures 2800 × 950 × 1800 mm, weighs 600–850 kg, and runs on a 0.37 kW Inovance motor with an MCGS or WEINVIEW HMI.
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