1. Product Overview

The Fully Automatic Silicone O-Ring Cutting, Bonding, and Inspection Machine is a high-efficiency solution designed to manufacture precision silicone O-rings and gaskets from extruded silicone cords, tubes, sponge profiles, and custom gasket shapes. Equipped with integrated joint inspection technology, the system automatically identifies and rejects defective or weakly bonded O-rings, while collecting only high-quality finished parts. This ensures consistent product reliability and minimizes manual rework.

A transparent protective safety door with built-in sensors provides clear visibility during operation while ensuring operator safety. If the door is opened, the machine immediately stops and an alarm is triggered.

The machine incorporates an intelligent cutting system with enhanced support to guarantee perfectly straight cross-sections, reducing miscuts and improving bond quality. A single setup is required per gasket type, with automatic length compensation and the ability to store up to 20 cutting formulas for quick product changeovers.

An integrated preheating module warms the silicone material before bonding, allowing faster adhesive curing, improved bonding strength, and shorter cycle times — particularly beneficial for hard-to-bond silicone compounds.

With the capacity to process up to 15 cords simultaneously, the system delivers a daily throughput of 20,000–36,000 O-rings (depending on gasket size and cut length, based on 10-hour operation). The complete process — feeding, cutting, adhesive dipping, hot mold bonding, joint curing, inspection, rejection of defective parts, and collection of good O-rings — is fully automated within one compact machine, providing manufacturers with high precision, efficiency, and reliability.

The machine is engineered for high-precision, high-output production. Featuring an intuitive PLC touch-screen control system, powered by a 5KW HCFA motor and AirTAC pneumatic components, it ensures stable performance and long-term reliability. An advanced coded alarm system allows quick troubleshooting and maintenance, significantly improving after-sales support and reducing downtime.

A built-in joint strength inspection module simulates tensile testing by controlling clipper pulling distance, hold time, and repetition cycles. Poorly bonded O-rings break naturally under stress and are automatically discarded, while properly bonded O-rings are released onto the conveyor for collection. This guarantees that only strong, reliable joints reach the final stage.

The bonding process delivers clean, precise joints with minimal adhesive residue thanks to customized mold cavities that perfectly match gasket profiles. Cutting accuracy is maintained through mechanical gripping hands and an automatic feeding system, ensuring consistent length tolerances and eliminating waste.

Designed for manufacturers with strict joint quality requirements, this machine combines precision bonding, intelligent inspection, and high productivity. It enables mass production of silicone O-rings with stable bonding strength, zero-failure joint performance, and reduced labor input, making it an ideal choice for modern silicone gasket production lines.

2. Technical Specifications

• Product Name: Fully Automatic Silicone O-Ring Cutting, Bonding & Inspection Machine

• Model No.: ES-060 (1.5 m cutting length type)

• Brand: ESMAI

• Key Features: Integrated joint quality inspection system to ensure reliable bonding

• Preheating device for enhanced permanent adhesion and reduced cycle time

• Transparent safety door with sensor interlock for operator protection

• Servo-driven automation with precision linear guide rails and ball screw drive

Electrical & Power: Voltage: 110V / 220V

Power: 5 kW

Performance: Simultaneous processing of 10–15 gaskets (depending on gasket size)

Productivity: 20,000–36,000 pcs/day (based on 10-hour operation, gasket size, and cut length)

Cutting length range: 230 mm – 1,500 mm

Cutting length tolerance: ≤ 500 mm: ±2 mm; ≤ 1,000 mm: ±3 mm

Material Capability: Gasket diameter range: 2–9 mm (expandable to 12 mm with enlarged feeder, max 10 pcs at once)

Suitable profiles: Round, square, and custom extruded silicone shapes (with special molds)

Machine Parameters: Dimensions (L × W × H): 7000 (8800) × 1800 × 2000 mm

Net Weight: 890 kg

Air Supply: 0.6 – 0.8 MPa

Control System: Touchwin PLC touch screen

3. Product Advantages

1. Fewer defective bonded O-ring gaskets: The joint quality inspection device filters out O-rings with bad or weak joints and collects only high-quality ones.

2. Reliable worker safety protection: Transparent doors allow clear visibility of internal operations. If the safety door is opened during production, the machine stops immediately to prevent potential worker injuries.

3. Easy operation: Only one cutting length setup is required per gasket type, with automatic length compensation calculation. Up to 20 formulas can be stored for 20 different gasket types, enabling one-key retrieval.

4. Convenient cleaning: The simplified and optimized glue brushing system makes it easier to clean silicone glue when the machine is not in use.

5. High productivity: The machine can process 10–15 silicone O-rings simultaneously, achieving a daily output of 20,000–36,000 silicone O-ring gaskets (taking 350–500 mm cutting length gaskets as an example).

6. Full automation & labor-saving: The entire process — drawing silicone gaskets to a fixed cutting length, cutting, dipping in silicone adhesive, placing glued gaskets in hot molds, bonding into O-rings, inspecting and removing defective joints, and collecting good bonded gaskets into collection boxes — is completed in one machine.

4. Machine Views

Front View

• Side View​​

• Back View