Description
Yong Heng 300BAR High-Pressure Compressor
Refill your high-pressure air cylinders quickly and conveniently with the Yong Heng 12V/110V/220V 300BAR Auto-Stop Compressor. Designed for high-pressure applications, this compact and portable compressor delivers a flow rate of up to 12 litres per minute, helping make filling tasks efficient and straightforward.
Built with a robust piston-pump system, the Yong Heng compressor is designed for durability and dependable performance. Its compact format makes it suitable for use both at home and in the field, while its multiple power options provide added flexibility.
Flexible Power Options
The compressor can be powered using either a 12V DC vehicle battery or 110V/220V AC mains power, depending on the model and configuration. This makes it practical for both workshop and mobile use.
The integrated fan cooling system helps dissipate heat during operation and supports reliable performance. For best results and to help maximise service life, always follow the recommended operating and cooling intervals in the manufacturer's manual.
Automatic Shut-Off
Models equipped with the automatic shut-off function allow you to set the desired pressure. Once the preset pressure is reached, the compressor automatically stops, helping reduce the risk of overfilling.
For models without automatic shut-off, the pressure gauge should be monitored continuously and the manufacturer's recommended maximum fill pressure must never be exceeded.
High-Pressure Hose and Filtration
The supplied high-pressure hose incorporates a filter designed to help reduce moisture and oil contamination in the compressed air. This can be particularly useful when clean, dry air is required for pneumatic equipment and other sensitive applications.
Regularly inspect the filter and replace or service the filter inserts as required. Moisture accumulation should be checked frequently, particularly in humid conditions.
Oil-Free Design
The oil-free design reduces routine maintenance requirements and helps minimise the risk of oil entering the compressed-air supply. This makes the compressor convenient for applications where clean compressed air is important.
Key Features
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Portable design: Compact and convenient for use at home or when mobile.
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Multiple power options: Compatible with 12V DC and 110V/220V AC power, depending on configuration.
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High-pressure capability: Up to 4350 PSI / 300 BAR.
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12 L/min flow rate: Provides efficient filling performance.
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Automatic shut-off: Stops automatically when the preset pressure is reached on applicable models.
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Fan cooling: Helps dissipate heat during operation.
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High-pressure filtration: Supplied hose and filter help reduce moisture and contamination.
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Oil-free operation: Helps simplify maintenance and minimise oil contamination.
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Repair kit included: Provides useful components for routine maintenance.
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Manual included: Refer to the manufacturer's instructions for installation, operation and maintenance.
Recommended Operating Guidelines
Proper operation and cooling are important for maintaining the performance and service life of a high-pressure compressor.
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Do not operate the compressor continuously for more than 30 minutes at a time. Allow adequate cooling between operating sessions.
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For longer fills, consider shorter operating intervals, such as 15–20 minutes, followed by a complete cooling period.
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Regularly inspect the filter inserts for moisture and service or replace them when necessary.
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Use the compressor primarily for topping up cylinders rather than filling completely empty cylinders from below the minimum recommended pressure, where possible.
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Always consult the manufacturer's manual for model-specific operating instructions, lubrication requirements and safety warnings.
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When using a vehicle's 12V battery, keep the vehicle engine running to reduce the risk of draining the battery. The compressor can draw substantial current during operation.
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Make sure all power connections and high-pressure hose fittings are securely connected before operation to help prevent interruptions, leaks or damage.
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Place the compressor on a stable, level surface to minimise vibration and ensure proper operation.
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Operate the compressor in a well-ventilated area to allow heat to dissipate effectively.
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On models with automatic shut-off, set the desired pressure before filling. On manual models, closely monitor the pressure gauge throughout the filling process.
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Never exceed the maximum fill pressure specified by the manufacturer of the cylinder or equipment being filled.
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Ensure the bleed valve is open before starting the compressor, where specified by the manufacturer's operating procedure. This helps prevent the motor from starting against pressure.
What's Included
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Yong Heng 12V/110V/220V high-pressure compressor
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12V car-battery power cable
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110V/220V AC power cable
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High-pressure hose with filter
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Repair kit
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Operating manual
Important Information
Please read the complete operating manual before assembly, installation and use.
Product images are for illustrative purposes only. Appearance and included components may vary between production batches or imported versions. Always verify the specifications and accessories supplied with the particular unit before purchase.
Temperature management is particularly important when operating a high-pressure compressor. Follow the manufacturer's recommended operating and cooling intervals at all times.
Due to the high-pressure nature of this equipment and the fact that the manufacturer cannot control how the product is installed, operated or maintained, warranty coverage may be subject to the manufacturer's specific terms and conditions. Please check the applicable warranty information before purchase.
About Yong Heng
Nantong Yong Yi Heng Pneumatic Co., Ltd., based in Jiangsu, China, began manufacturing Yong Heng compressors in 2015.
The company specialises in high-pressure air pumps and compressors for applications including PCP systems, diving equipment and other pneumatic machinery. Its products are exported to markets around the world, including the US, EU, Australia and South Africa.
The Yong Heng range includes a variety of high-pressure pumps and compressors designed for different applications and operating requirements. Models are available with different power configurations, including 110V and 220V versions for different markets.
Yong Heng Website