Overview

ProWash S is SprintRay’s automated post-processing system designed to deliver a complete two-stage wash and high-performance dry in one streamlined workflow. Before running your first cleaning cycle, it’s important to set up the device correctly, load fresh IPA, and understand the wash options available for different applications.

This guide walks through unboxing, preparing the workspace, connecting the unit, and performing your first full wash cycle.

What’s in the Box

Your ProWash S package includes:

• ProWash S unit
• Power adaptor and power cable
• Hydrometers (pre-installed for each chamber)
• Wash basket
• USB cable
• Build platform adaptor (for Pro55 / Pro55 S)
• Metal tweezers
• Cleaning brush
• Drain hose (pre-installed)
• Wash filter
• Magnet sticker (for Pro95 / Pro55 platforms)
• Onboarding card

Setup

Place ProWash S in a:

• Well-ventilated room
• Level, stable work surface
• Temperature-controlled environment
• Area shielded from direct sunlight or bright heat sources

If possible, position ProWash S near your SprintRay printer and curing unit to create an efficient workflow path.

Important: Never place objects on top of ProWash S.

Powering On the Device

1. Connect the power adaptor and cable.
2. Plug the unit into a surge protector. 
3. Flip the power switch (rear panel) to the On position.
4. The touchscreen will guide you through setup.

Network Connectivity

Maintaining an internet connection ensures:

• Software updates
• Updated wash profiles
• Cloud job handoff from printer → wash → cure

To connect:

1. Select the Settings icon.
2. Choose Connectivity.
3. Select a Wi-Fi network and enter the credentials, or connect via Ethernet.
4. Confirm the network name appears on the home screen.

Understanding Core Components

Wash Chamber

The wash chamber performs all washing and drying operations. Solvent is automatically pumped in and out during the cleaning cycle.
Never pour solvent directly into this chamber.

Reservoir

The reservoir contains two chambers:

• Chamber 1 – Primary wash (saturates first and requires more frequent replacement)
• Chamber 2 – Fine wash (can be recycled into Chamber 1 when needed)

Fill each chamber through the reservoir opening.
 

Hydrometers

Hydrometers measure solvent saturation.

• Floating hydrometer → solvent is fully saturated and should be replaced
• Submerged hydrometer → solvent is acceptable for use
 

Quick Connect Ports

Each reservoir chamber includes a quick-connect drain port.
Use the provided drain hose to empty solvent when replacing IPA.

Adding Isopropyl Alcohol 

Open the reservoir lid.

Add at least 500 mL of IPA to each chamber.
• IPA 91 percent is recommended.
• IPA 99 percent can be used, though sensors may take several cycles to calibrate.

Close the reservoir lid to prevent evaporation.

Running Your First Wash Cycle

Step 1: Prepare Prints

• Remove the build platform from the printer.
• Keep supports attached unless your workflow dictates early removal.
• Choose Platform Wash or Basket Wash based on model type.

Step 2: Start the Cycle

If connected via SprintRay Cloud:

• Print jobs appear automatically on ProWash S.
• Select the job and tap Start.

If starting manually:

1. Choose a Standard Cleaning Cycle.
2. Confirm Platform or Basket detection.
3. Tap Start.

Step 3: Allow Cycle to Complete

The standard cycle lasts 9 minutes.

Step 4: Remove and Inspect Models

When the touchscreen displays Cycle Complete:

• Remove the basket or platform
• Inspect for residual resin
• Confirm models are fully dry

If moisture remains, run a Dry Only cycle.

Prints are now ready for curing.