Knowledge Bank

Hydrostatic drivelines for off-road machines – how to size pump, motor and gearing

How do you build a hydrostatic driveline that pulls hard, reaches its top speed and does not overheat? We cover the layout, the closed circuit, pump and motor control options…

Valve blocks and cavities for cartridge valves – how to choose the right mounting and size

The cartridge valve is always a cartridge – it's the block it sits in that determines mounting, connections and extra functions. We cover in-line blocks, sandwich blocks (BBA vs BJA),…

Load holding valves – how counterbalance valves work and how to choose the right one

Load holding valves keep a load safely in place when pressure is lost. We explain how counterbalance valves work, when a pilot-operated check valve is enough, and when LoadReactive, LoadMatch…

Logic elements in hydraulics – how they work and how to choose the right one

Logic elements are the building blocks of hydraulics for controlling large flows with small pilot signals. We explain how they work, the difference between balanced and unbalanced designs, and what…

QMEH – Cartridge-style flow sensor

Compact and accurate flow sensor for integration into a sandwich stack, line-mounted housing, or new manifold design projects. Easily create a closed loop! Together with the XMD-02, the flow sensor…

Designing and Manufacturing Hydraulic Manifolds – Engineering That Withstands the Pressure

Designing hydraulic manifolds is our core expertise – we’ve made thousands over the years. A well-executed design always starts with the right methodology and clear priorities. There are many guidelines,…

Anpassa och justera Bosch Rexroth RM-10 och RM-15 på plats.

Customize Rexroth RM Valves On-Site with Portable milling Tool

Rexroth has introduced a new portable milling tool that allows precise on-site customization of valve spools for the RM-10 and RM-15 mobile valve series. This innovation enables fine-tuning of the…

Sun Hydraulics Datumkoder för hydraulventiler och hydraulblock

SUN Hydraulics date codes

SUN Hydraulics uses date codes on their cartridge valves to track the exact manufacturing date. In the attached document, the date key is explained. SUN Hydraulics date codes from 1986…

Technical information about SAE flanges

An SAE flange is a standardized hydraulic connection interface designed according to specifications set by the Society of Automotive Engineers (SAE). It provides a reliable and leak-free method for connecting…

Sun Hydraulics model codes for valves, coils and manifolds

Sun Hydraulics structures its product names (model codes) in a fixed format, making it easy to quickly understand key characteristics of the product. The model code is based on…

Guide to Sun Hydraulics installation torque

Below is a table showing Sun Hydraulics’ recommended torque specifications for installing cartridge valves. The table is organized by valve series and lists the recommended tightening torque as well as…

Technical tips for manufacturing SUN cavities

The document below provides a detailed description with recommendations for manufacturing and drilling SUN Hydraulics cavities. It includes a checklist for machining tools, a checklist for cavity inspection, machining tips,…

Avoid leakage between sandwich manifolds

Be meticulous when assembling sandwich stacks – improper installation can lead to leakage, which affects both performance and operational reliability. When stacking multiple sandwich manifolds on top of each other,…

Erosion due to cavitation in hydraulic manifolds

Cavitation refers to the formation of small bubbles in the hydraulic oil, typically caused by high flow velocities, pressure drops, and low system pressure. These bubbles consist of dissolved gases…

Pressure Compensator – Always an Even Flow Across the Directional Valve

When handling varying loads, the displacement and speed of the load are affected. You want the relationship between the control device — for example, a steering wheel or joystick —…

Measure Vibrations with the VibroChecker App

With the VibroChecker app from ACE Controls, you can easily measure vibrations in industrial applications and beyond. The data collected can help you select the right vibration isolation solution to…

New proportional flow control valve

The new patented FREP valve combines electrically proportional variable throttling with a compensator in a single unit. This allows for a constant priority flow regardless of variations in load pressure.…

DTAF-S hydraulisk mjukskiftande on/off ventil

Soft Shift DTAF-S

A common challenge in hydraulic systems is pressure spikes during valve shifting or unloading. These spikes place unnecessary stress on the system and can eventually lead to leaks or other…

Hydraulic Dampers – How They Work and What to Consider

With ACE Controls hydraulic dampers, the braking force can be adjusted for both the inward and outward movement. These dampers are used to control, slow down, and synchronize swinging and…

Konfigurera styrenheten XMD med CANPOINT

Configure your closed-loop system quick and easy!

CANpoint is Sun Hydraulics’ software for configuring the XMD controller. The program is available for free download and requires no programming skills — configuration is done through a user-friendly interface.…

Simple and Efficient Circuits for Flow Prioritization in Mobile Applications

Sun Hydraulics offers several ready-made circuits for flow prioritization, ideal for add-on functions such as rock crushers and hydraulic breakers on excavators, wheel loaders, and other construction machinery. These are…

The ultimate solution for lowering heavy loads at flow rates up to 480 l/min!

It can often be challenging to smoothly and controllably lower heavy loads at high flow rates. Instability may occur, high system pressures are required to lower the load, and downstream…

Up to 60% less stress with a properly sized shock absorber!

Different techniques for cushioning impacts and shocks absorb energy in different ways, both in terms of amount and damping characteristics. The gentlest is a smooth energy absorption, as shown by…

Energibesparingar inom hydraulik och lasthållare

Energy Efficiency – Save up to 30% with Load Adaptive and Load Match

A standard counterbalance valve is always a compromise between stability and efficiency. High pilot ratios are chosen for efficiency, while low pilot ratios provide better stability. Unnecessary energy consumption when…

Get the the right gas spring – with fast delivery!

Sometimes there are challenges in quickly finding the right gas spring. This could be due to design changes, shifting parameters, or replacement of mounting points. The ACE GS series features…

Help Replacing Phased-Out Sun Hydraulics Valve Models

Sun Hydraulics is phasing out old valve models and replacing them with upgraded versions. Many of the new models can be replaced one-to-one in terms of cavity and function. For…

Sun Hydraulics hydraulventiler i standard kavitet

SUN Hydraulics is expanding its range of valves with common cavity designs

SUN Hydraulics is now launching additional valves compatible with SAE cavities ISO 17209:2013, also known as common cavity or UNF cavity. Replace valves from Parker, Hydraforce, Danfoss, and Eaton…

Simple and Efficient Filtration with Filter Valve – Start-Up Filtration

Cleanliness is critical in any hydraulic system. Traditional filters are typically installed in-line or flange-mounted, which takes up space. More filters increase the pressure drop in the system, and once…

Energy Savings – More Important Than Ever! Hydnet Helps You Save Money and the Environment

Creating an energy-efficient and economically sustainable long-term solution has always been a priority for us at Hydnet. With sharply rising energy prices, as we’ve seen recently, and the ongoing debate…

There is a shock absorber for every need

Need to dampen or control motion in hatches, protective covers, service panels, inspection hatches, fire dampers, smoke vents, engine covers, or other moving components? We offer suitable products for virtually…

Crash damper – An effective emergency stop!

This crash damper offers highly effective energy absorption and is designed for emergency use. It is ideal for applications with a low risk of failure but a high risk of…

More SUN valves with common cavity

SUN Hydraulics Expands Its Range of Valves for SAE Cavities (ISO 17209:2013), Also Known as Common Cavity or UNF Cavity. Replace Valves from Parker, HydraForce, Danfoss, and Eaton Vickers These…

FREL – Fully Adjustable Priority Valve

How a Priority Flow Control Valve Works A priority flow control valve supplies the main function with a fixed, pre-set flow rate, while the remaining flow can be used for…

Cab Suspension – Flexibility and Ergonomics for Operator Comfort

Creating a smooth and flexible working environment for the operator is crucial for anyone designing machines with a cab and driver—especially when those machines operate off-highway on uneven terrain or…

Hydraulventil för luft i oljan, uppstartsventil, avluftningsventil

Air Bleeding During Hydraulic System Startup

When starting up a hydraulic system after a new installation, service, or extended downtime, it’s common for air to enter the system. Problems Caused by Air in the Hydraulic System…

Shock absorbers and vibration dampers for military applications

ACE Controls AAM (All Altitude Mounts) are vibration isolators specifically designed to protect lightweight electronic systems and components. Dampers for off-road vehicles and harsh conditions These are used in military…

Hydraulisk regenerativ drift i hydraulblock och hydraulkrets

Regenerative systems – How they work

When working with a fixed flow rate but aiming to increase the speed of a hydraulic cylinder, regenerative circuits are a common solution. How does regenerative operation work? The principle…

Tubus – Better damping than a rubber stop, simpler and more cost-effective than a shock absorber

TUBUS rubber dampers are a great choice when you need to absorb motion — such as in a hatch, crane bridge, or impact arm — and want an absorber easy…

Hydraulisk säkerhetsventil fungerar som säkrning

Kick Down – Hydraulic Pressure Lock Valve

The Kick-Down valve can save machinery if something becomes blocked, stuck, or jammed. Hydraulic valve similar to a fuse – safety valve If the pressure rises above the set value,…

Cold start filter GPT from Schroeder

When a hydraulic system is shut down and the flow of oil stops, contaminants and particles will be released from the filter. At cold start, when the viscosity of the…

Cast Manifolds: How We Achieve 23% Weight Reduction

SUN has now launched cast manifolds, with the EVY/S1 as the first model. Cast hydraulic standard manifolds This manifold offers several advantages, including: Improved performance thanks to optimized flow paths…

Automatiska Elektrifierade dörrar och luckor

ACE Powerise – Electrification of Hatches and Doors

ACE Controls’ new Powerise series is an advanced and robust alternative for the electrification of hatches and doors – operated with a simple push of a button. It combines strength,…

LHDA tryckkompensator och prioritetsventil, prioriterat flöde till styrningen

New! Valve Control as a Replacement for Steering Orbitrol

When combining SUN’s priority valve and compensator LHDA-X*N with the Rexroth M4 mobile valve, it’s possible to replace orbit-type steering orbitrols with an electrically actuated directional valve. Pressure compensator and…

Roterande svivelkopplingar direkt i hydraulblocket

Swivel Couplings in Cartridge Style

You can now integrate swivel couplings (rotary joints) directly into hydraulic manifolds with SUN components. A swivel joint is a rotating connection that allows 360-degree rotation between the hose and…

Issues Related to Static Electricity in Hydraulic Systems

ESD, electrostatic discharge, can cause significant issues in a hydraulic system. Problems with Electrostatic Discharge (ESD) Hydraulic systems can experience unusual faults and contamination, including burnt filter elements, accelerated oil…

Välj rätt tryckbegränsare för ditt hydralsystem och för din applikation

How to Select the Right Pressure Relief Valve for a Hydraulic System

Pressure control valves are used to limit and regulate pressure within the functions of a hydraulic system. Pressure relief valves are commonly used as a safety valve to ensure that…

Avoid Unnecessary Heat in Closed-Loop Transmission Systems!

In hydrostatic transmissions with closed-loop circuits, significant temperature increases and pressure spikes can occur when shock valves activate at high pressure. High Heat in Closed-Loop Transmission Systems For example, if…

Pressure filter for hydrostatic systems

For protection of actuators, pumps and motors with Schroeder filter 14-CRZX10. Contamination during cold start of hydraulic systems Generally, almost all contamination enters the hydraulic system during cold start. The…

Elstyrd proportionalventil SUN Hydraulics

Proportional flow control valve with capacity over 400 l/min

FPJP is a new electrically controlled proportional valve launched by SUN. Proportional valve with flow capacity up to 480 l/min The FPJP has a flow range up to 480 l/min…

Wire rope isolatorer för militärapplikationer

Wire rope isolators for shock and vibration damping in military applications

Military environments are highly demanding, and vibration damping and noise reduction are crucial to ensuring equipment performance and durability. Hydnet now presents ACE’s Wire Rope Isolators (Wire Dampers) – an…

Proportionell styrning av hastighet pa Vinschar med Rexroth Radialkolvmotor MCR.

Stepless speed control of hydraulic winches using Rexroth MCR radial piston motor and Sun Hydraulics components

MCR Motors are available in various sizes and displacements, making them ideal for a wide range of vehicle applications such as forklifts or agricultural and forestry machinery. The MCR radial…

Generara el i hydraulsystemet på returledningen, tankledningen

Power Generation from Hydraulic Return Flow

With Sun Hydraulics’ innovative generator valve Energen, energy from the return flow is recovered. Electricity is generated by a small turbine driven by the fluid flow. It can produce up…

Hydraulic tank, no corrosion, light weight

Lightweight hydraulic tank in polyethylene

Schroeder’s hydraulic tanks and accessories help improve the cleanliness level of your hydraulic system. A good rule of thumb to keep in mind is: “It costs 10 times more to…

QuickDesign – generate manifold design from your hydraulic schematic

Draw your hydraulic schematic in QuickDesign with valves, ports, and mounting hole patterns. Then let QuickDesign design the manifold while you enjoy a cup of coffee! Generated manifold design QuickDesign…

CETOP mount high pressure filter on hydrualic manifold

High-pressure filters in CETOP design for servo and proportional valves

Did you know there are CETOP-mounted high-pressure filters designed to save space? High-pressure filters reduce the risk of operational disturbances and downtime while extending the quality and lifespan of your…

Use serveral funtions in one hydraulic manifold

80% less components

Fewer components, reduced volume, and shorter assembly time. Below is an example of one of many custom solutions developed by Hydnet – with a clear focus on reducing component count,…

Sun Hydraulics RPEI proportional electrical valve

RPEI – Proportional Pressure Relief Valve, Inverted Function

RPEI is an electrically controlled pressure relief valve that combines precise pressure regulation with a built-in safety feature – it secures flow to critical functions even during power outages. Electrically…

2-speed manifolds

Why complicate things? Sun offers over 700 ready-made solutions for a wide range of functions. One of these is ready-to-use two-speed manifolds. The function is available both as sandwich manfolds…

Choose the right counterbalance valve from Sun Hydraulics

Over 180 Counterbalance Valves – How to Choose the Right One

Sun Hydraulics offers over 180 different counterbalance valves for the mobile, industrial, and marine markets. With so many options, it can be challenging to know which one is right for…

SUN Hydraulics launches pressure reducing valves in Series 0

SUN Hydraulics has developed three new Series 0 pressure reducing valves, ideal for low flow applications and where space is limited. All three valves are direct-acting and designed for the…

Bearbetningsritning Sun Hydraulics kaviteter

SUN Hydraulics cavity overview and explanation of cavity systems

Sun Hydraulics has developed a proprietary, smart, and modular cavity system that offers several key advantages compared to other brands. Here we explain why Sun Hydraulics valves are a more…

Hydrostatic transmission

A hydrostatic transmission is a type of power transmission system that uses hydraulics to transfer power and regulate speed in a machine or vehicle. It consists of three main components:…

Mount assemble Sun Hydraulics turnable sandwich manifolds

Mounting and assembly of Sun Hydraulics sandwich bodies

Several of Sun Hydraulics’ sandwich manifold bodies are reversible – meaning that the flow direction for meter-in and meter-out depends on how the sandwich body is installed. This is a…

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