1. Introduction
The Central Pneumatic Model 4512 Air Hydraulic Riveter is a robust tool designed for efficient blind rivet installation. Its construction features a lightweight cast aluminum body and machined chrome-plated steel nosepieces, ensuring durability and reliable performance in various applications. This tool is equipped with an air relief valve to prevent overloading and a safety cap to collect spent rivet pins, enhancing both tool longevity and user convenience.

Figure 1: Central Pneumatic Model 4512 Air Hydraulic Riveter. This image displays the complete riveter unit, highlighting its ergonomic design and key components such as the handle, nosepiece, and spent pin collector.
2. Safety Information
Always prioritize safety when operating power tools. Read and understand all instructions before use. Failure to follow these instructions may result in serious injury.
- Wear appropriate personal protective equipment (PPE), including safety glasses with side shields, hearing protection, and gloves.
- Ensure the air supply is disconnected before performing any maintenance, changing accessories, or storing the tool.
- Do not exceed the maximum recommended air pressure for the tool.
- Keep hands and body parts clear of the nosepiece and working area during operation.
- Use only the correct size and type of rivets for the selected nosepiece.
- Ensure the workpiece is securely clamped before riveting.
- Do not modify the tool or use it for purposes other than its intended design.
- Keep the work area clean and well-lit.
3. Package Contents
Verify that all items are present and undamaged upon unpacking:
- Central Pneumatic 1/4-inch Air Hydraulic Riveter (Model 4512)
- Interchangeable Nosepieces for rivets: 1/4 in, 3/16 in, 5/32 in, 1/8 in.
- Safety Cap (for collecting spent rivet pins)
- Wrench for nosepiece changes
- Air supply nozzle/connector
- Instruction Manual
- Note: Hydraulic oil is required but not included.
4. Specifications
| Feature | Specification |
|---|---|
| Brand | Central Pneumatic |
| Model Number | 4512 |
| Rivet Capacity | 1/4 in, 3/16 in, 5/32 in, 1/8 in. |
| Body Material | Lightweight Cast Aluminum |
| Nosepiece Material | Machined Chrome Plated Steel |
| Special Features | Safety cap for spent rivet pins, Air relief valve to prevent overloading |
| Hydraulic Oil | Required, not included |
5. Setup
5.1 Connecting Air Supply
- Ensure your air compressor is off and the air line is depressurized.
- Apply thread sealant to the threads of the U.S.-specification air nozzle.
- Screw the air nozzle into the air inlet port at the base of the riveter. Tighten securely.
- Connect your air hose to the installed air nozzle.
- Turn on your air compressor and adjust the pressure to the recommended operating range (refer to tool markings or full manual for specific pressure).
Video 1: Demonstrates the process of attaching the air supply nozzle to a pneumatic riveter. This video is provided by AUTOUTLET, a seller of similar pneumatic riveters.
5.2 Installing/Changing Nosepieces
The riveter comes with interchangeable nosepieces to accommodate different rivet sizes. Select the nosepiece that matches the diameter of the rivets you intend to use.
- Disconnect the air supply from the riveter.
- Use the provided wrench to unscrew the currently installed nosepiece.
- Select the appropriate nosepiece for your rivet size (1/4 in, 3/16 in, 5/32 in, or 1/8 in).
- Screw the new nosepiece onto the riveter by hand until snug.
- Use the wrench to tighten the nosepiece securely.
Video 2: Illustrates the procedure for changing nosepieces on a pneumatic riveter using the provided wrench. This video is provided by AUTOUTLET, a seller of similar pneumatic riveters.
Video 3: Shows the process of selecting and installing the correct guide nozzle for a pneumatic riveter. This video is provided by PROSTER US, a seller of similar pneumatic riveters.
5.3 Adding Hydraulic Oil
The riveter requires hydraulic oil for proper operation. Hydraulic oil is not included with the tool and must be purchased separately. Refer to the full product manual for specific oil type and filling instructions.
6. Operating Instructions
6.1 Loading Rivets
- Ensure the correct nosepiece is installed for your rivet size.
- Insert the rivet stem into the nosepiece opening until the rivet head rests against the nosepiece.
- Some models feature a self-suction design that automatically picks up rivets for efficient riveting.
Video 4: Demonstrates the self-suction feature of a pneumatic riveter, showing how it automatically picks up rivets for quick operation. This video is provided by VORXEON US, a seller of similar pneumatic riveters.
6.2 Rivet Installation Process
- With the rivet loaded, place the nosepiece firmly against the pre-drilled hole in the workpiece.
- Press the trigger to activate the riveter. The tool will pull the rivet stem, expanding the rivet body and securing the materials.
- Continue holding the trigger until the rivet stem breaks off. The spent pin will be collected in the safety cap.
- Release the trigger and remove the tool from the workpiece.
- Periodically empty the safety cap to prevent accumulation of spent rivet pins.
Video 5: Shows the operation of a pneumatic riveter, demonstrating how to insert a rivet and activate the tool to secure it. This video is provided by PROSTER US, a seller of similar pneumatic riveters.
Video 6: Illustrates the efficient riveting process using a pneumatic riveter, including the collection of spent rivet pins in the safety cap. This video is provided by VORXEON US, a seller of similar pneumatic riveters.
7. Maintenance
7.1 Cleaning
- After each use, disconnect the air supply and wipe down the tool with a clean, dry cloth.
- Empty the spent rivet pin collection cap regularly.
- Inspect nosepieces for wear or damage. Replace as needed.
7.2 Lubrication
- Regularly add a few drops of pneumatic tool oil into the air inlet before each use or after extended periods of non-use.
- Ensure the hydraulic oil reservoir is filled to the appropriate level with the recommended hydraulic oil. Refer to the full manual for detailed instructions on checking and refilling hydraulic oil.
7.3 Storage
- Store the riveter in a clean, dry place away from direct sunlight and extreme temperatures.
- Keep the tool out of reach of children.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Riveter not operating | No air supply; Low air pressure; Air hose disconnected | Check air compressor and connections; Adjust air pressure; Reconnect air hose |
| Rivet not setting properly | Incorrect nosepiece size; Worn jaws; Insufficient air pressure; Incorrect rivet size | Install correct nosepiece; Replace jaws; Increase air pressure; Use correct rivet size |
| Spent pin not ejecting | Safety cap full; Obstruction in nosepiece | Empty safety cap; Clear obstruction from nosepiece |
| Oil leakage | Loose fittings; Damaged seals | Tighten fittings; Inspect and replace damaged seals (professional service recommended) |
9. Warranty and Support
This Central Pneumatic product is covered by a manufacturer's warranty. Please refer to the warranty card included in your package for specific terms, conditions, and registration information. For technical support, replacement parts, or service inquiries, please contact Central Pneumatic customer service.
Keep your purchase receipt and warranty card in a safe place for future reference.





