MRMaschinenbaurechner

Categories

All categories at a glance: each one bundles related calculators - from preliminary sizing to verification. One click on a tool starts the calculation right in your browser.

Drive sizing

8 tools

From motion profile to motor: torque, speed, power and reflected inertia for linear and rotary axes. With the drive sizing calculator, motion profile, mass moment of inertia, slider-crank and brake sizing, this category covers the complete preliminary design of a drivetrain.

Automation & handling

13 tools

Sizing calculators for handling technology and special machinery: cycle times of positioning axes, ball screws, indexing tables, gripper and vacuum technology, shock absorbers and toggle clamps. Ideal for the fast concept phase of automation solutions.

Drive technology

12 tools

Classic drive elements: cam design per VDI 2143, spur gears per ISO 6336, bevel and worm gears, chain drives, cylinder forces and the critical bending speed of shafts.

Strength

9 tools

Strength verification for components: beam bending with many load cases, buckling, torsion, tension/compression, equivalent stress, Hertzian contact, fatigue, area moments of inertia, pressure vessels and shaft calculation per DIN 743.

Steel construction (EC3)

2 tools

Verification per Eurocode 3: flexural buckling of members and the resistance of bolted connections in steel construction.

Engineering mechanics

4 tools

Fundamentals of engineering mechanics: axial bars, belt friction per Euler-Eytelwein, centrifugal force and the single-mass oscillator for vibration questions.

Joining technology

12 tools

Joining technology in mechanical engineering: bolted joints per VDI 2230, interference fits, parallel keys, pin and rivet joints, welds and flange calculation.

Machine elements

8 tools

Machine elements: compression, extension, disc and leg springs plus rolling bearing life per ISO 281.

Tolerances and fits

4 tools

Fits per ISO 286, geometric tolerances (true position), general tolerances and statistical tolerance stackups with Monte Carlo simulation.

Sheet metal

2 tools

Sheet metal: flat pattern and bend allowance per DIN 6935 plus the required bending force for air and bottoming bending.

Manufacturing

8 tools

Machining and manufacturing processes: cutting data, cutting force per Kienzle, tapping drill diameters, punching force, drawing force and welding heat input.

Surface engineering

1 tools

Understand and verify surface parameters: Ra, Rz and further roughness parameters per ISO 21920.

Materials & hardness

3 tools

Material properties for steel, aluminium and more, hardness conversion between HB, HV and HRC, and the weight of semi-finished products.

Quality & metrology

1 tools

Quality assurance and metrology: measurement system analysis (MSA) with Cg/Cgk per type 1 studies and gage R&R per AIAG and VDA 5.

Fluid engineering

1 tools

Fluid engineering: pressure drop in piping from pipe friction and minor losses.

Pumps & hydraulics

6 tools

Pumps and hydraulics: NPSH and cavitation margin, pump power, specific speed, affinity laws and positive displacement pumps.

Thermodynamics & heat

9 tools

Thermodynamics and heat transfer: ideal gas, state changes, Otto and Diesel cycles, conduction, convection, heat exchangers and pipe heat loss.

Basics & converters

1 tools

Convert engineering units quickly and reliably: length, area, force, pressure, torque, power, temperature and more.