Rhythm Selective Soldering Machine

RPS Rhythm

The Rhythm selective soldering machine is a powerful system in a space-saving footprint. This soldering machine has been designed for high mix, high value, and low to mid volume PCB production environments. It can be programmed in minutes and can handle basic to complex dip, drag, wire bond and other through-hole soldering processes previously performed by hand or wave soldering.

The Rhythm soldering system features best-in-class servo motor motion control, providing speed, accuracy, and repeatability. A superior thermal performance miniwave is achieved with the use of a closed loop temperature controlled nitrogen inertion process. RPS Automation offers innovative miniwave nozzle designs for wave stability and defect free performance. 

Rhythm Selective Soldering Machine Features

Solder Range

Solder Method


Swap Solder Pots

Active Nozzles


18 x 12”

18 x 18” w/rotate
Nozzle Motion

X-Y-Z Axis
Closed Loop Servo Yes 1

2 (concurrent)
RPS Gaussian MiniWave™

The Rhythm comes standard with a 1 year parts and labor warranty, installation, training, programming software and a ship-away kit with consumables and spares. Solder pots are backed by a lifetime warranty.



The effectiveness of an RPS system is highlighted by its ability to handle a high mix of changing and often complex assembly requirements, including tall and odd size components, tight keep aways, thermal demands and thermal limitation. The RPS Gaussian MiniWave™ delivers precise and smooth laminar solder for tight keep aways and repeatability. RPS N2 DirectHeat™ for N2 inertion delivers closed loop N2 temperature control from 0-400C. This innovation enables superior thermal capacity at the point of soldering, reducing, if not, eliminating component risk associated with pre-heat. These and more innovations provide RPS customers with the ability to meet ever changing requirements.


The Rhythm does not rest on the success of the past. Several new features highlight this flexible performer:

17” LCD Witness System

New Tool Storage Racks

Ultrasonic Fluxer for RMA No Clean Flux Types

Internal LED Lighting System

Fully Integrated Fiducial Vision System


superior price-to-performance value

Selective soldering is proven to reduce hand and wave soldering operating costs by 30-90%. But payback also requires a system that offers easy programming, low cost operation, affordable off-the-shelf parts, and durable 10+ years of operation. The Rhythm meets these requirements with ease. Moreover, with unmatched thermal control and precision, the Rhythm can process a wide range of applications, which means processing more on your RPS system and generating superior value for each dollar invested.

Industry Standard Spare Parts

Low Cost N2 Consumption | 30 CFH

Low Cost Dross Production | 1.5 Ounces/Shift

High Precision Keep Away | 0.5mm Ready

Made in the USA Support & Pricing

Excellent Thermal Capacity | 200 - 400°C N2 Inertion


Rhythm Soldering System Specifications


Computer controlled XYZ robotic platform using closed loop servo motion control robotics. Flux and miniwave nozzles articulate below PCB. Programs generated via RPS CamConductor programming package. Program via GUI selection relative to imported JPEG and Gerber data images. Virtually unlimited program storage. Windows 7 PC, keyboard, mouse, monitor and monitor mount, software & nozzles included. (Options denoted by *.)


X/Y/Z Control Closed Loop Servo Motors

X/Y/Z Motion | Accuracy Lead Screw | ± .002"

Interpolated Motion Yes | Simultaneous X, Y and Z

Max Speed Ω X/Y axes @ 5” per second

Max Process Range12 x 18” | 300 x 450 mm

Min/Max PCB Size 1 x 1” to 18 x 18” | 25 x 25 mm to 450 x 450 mm

Load Method Manual | Universal PCB Holder

Inline SMEMA Load Option | SMEMA Edge Belt


Approach 360° | Access to All Solder Points

Nozzle Material Wetted Alloy

Nozzle Sizes (ID)1.5, 2, 2.5, 3, 4, 5, 8, 10, 20 mm & custom

Keep Away 1.5mm Standard | 0.5mm Capable

Max Wave Height 6mm Standing Wave Height

Component Max Height 3” | Top & Bottom of PCB

Flux PROCESS Control

Spray Fluxer Standard | Stainless Steel

Drop Jet Fluxer*0.5 - 2mm | 14% Solids Max

Ultrasonic Fluxer*1 - 5mm | 40% Solids Max

Dual Fluxers / Chemistry* Two Independent Nozzles & Plumbing

Flux Capacity 1 Liter Pressurized (per tank)

SOLDER Pot Management

Solder Pot Capacity 35 lbs | 16 kgs

Temp Control PID proportioning (0-400°C) ± 2°C

Heat Time 60 Minutes

HMP Upgrade* Option

Dross Production 1.5 Ounces per 8 Hours

Maintenance Cycle 80 Hour Pump Clean | 30 Minutes

nitrogen management

N2 Inertion RPS DirectHeat™

N2 Temp Control 0-400 °C Closed Loop | Adjustable Set Point

N2 Consumption | Purity 30-35 CFH | <20 PPM O2


  • Steel Welded Frame

  • Password Control

  • Lifetime Solder Pot Warranty

  • N2 Temp Control

  • Industry Standard Spare Parts

  • Drop Jet / Ultrasonic Flux Nozzles*

  • Custom Nozzles*

  • Dual Flux Nozzles*

  • High Def Witness Vision*


Safety UL and CE Compliant

Electrical 208-240 VAC | 1Ø 3 Wire | 50-60hz | 30 amp

Dimension (D-L-H) 32 x 48 x 43” | L 68” inline

Weight 1000 lbs | 450 kgs

Air 80 PSI | Clean and Dry

Nitrogen N2 <20 PPM O2 | 30 SCFH N2

Ship Weight 1250 lbs | 375 kgs

Exhaust 25 SCFH (ft3)

Interested? Check out This video to see how the Rhythm runs.
For more information, send a detailed message to This email address is being protected from spambots. You need JavaScript enabled to view it.