Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
machine operational
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "machine operational" is correct and usable in written English. You can use it when referring to a machine that is functioning or ready for use. For example, "The machine operational status was confirmed before production began." Alternative expressions include "machine functioning" and "machine in service."
✓ Grammatically correct
Science
News & Media
Alternative expressions(20)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
9 human-written examples
These magnets are instrumented with various cryogenic compatible sensors and voltage taps for its monitoring, operation, protection, and control during different machine operational scenarios like cryogenic cool down, current charging cycles including ramp up, flat top, plasma breakdown, dumping/ramp down and warm up.
This paper discusses the details of the process design, and process flow diagrams of the both the helium cooling systems, their operational states with reference to the ITER machine operational states, and performance & behavior of the helium systems during normal operation and accidental conditions.
The non-axisymmetric magnetic field, naturally present in every tokamak, constraints the machine operational space.
Based on behavioural simulation of virtual product models, appropriate information for haptic interaction is generated, and machine operational interfaces are simulated by use of generic haptic devices.
Science
It is shown that most of the important breeding blanket functions can be investigated with the parameters of ITER, and that the blanket test program can be synchronized with the machine operational scenario.
The speed of the machine varies from 100 – 600 rpm while machine operational parameters such as throughput capacity, peeling efficiency, mechanical damage, quality performance efficiency and peel retention were determined for each size.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
51 human-written examples
In the phase III, expert systems based on fuzzy rule modeling approach are adopted to derive measures of machining operational sustainability called operational sustainability index (OSI).
When product diversity is high, though, especially in production of unique items or with multiperiod production processes (as in construction, shipbuilding, and design and assembly of large, one-of-a-kind machines), operational control systems will be difficult to develop.
News & Media
To the best of our knowledge there currently are only two neutral merged-beam machines operational, but other efforts are under way [54, 55].
The machine was operational until the 1950s.
News & Media
We won't know the answers for a while, but if they can be made a reality, I believe these teams could be the difference between a forward-thinking department open to innovation and one with a fax machine still operational in 2050.
News & Media
Expert writing Tips
Best practice
When describing a machine's status, use "machine operational" to clearly indicate that it is ready for or currently in use. This avoids ambiguity compared to simply saying 'the machine is working'.
Common error
Avoid repetitive use of "machine operational" in technical writing. Vary your language by using synonyms like "functioning", "active", or more specific terms that describe the machine's precise state or activity.
Source & Trust
85%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "machine operational" functions as an adjective phrase describing the state or condition of a machine. It indicates that the machine is in a working or usable state, ready to perform its intended function. As Ludwig confirms, the phrase is considered correct and usable in written English.
Frequent in
Science
43%
News & Media
43%
Academia
14%
Less common in
Encyclopedias
0%
Wiki
0%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, "machine operational" is a grammatically correct and usable phrase, though somewhat uncommon. It functions as an adjective phrase and serves to communicate that a machine is in a functioning or ready state. While Ludwig indicates the phrase is correct, varying your wording with synonyms like "functioning machine" can improve readability, especially in technical documents. As the analysis of Ludwig's examples shows, the phrase appears in scientific, news, and academic sources, ranging from neutral to formal in register.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
functioning machine
Focuses on the current state of the machine being actively in function.
working machine
Emphasizes the machine's ability to perform its intended tasks.
machine in service
Highlights that the machine is currently available and being utilized.
machine up and running
Indicates the machine has been started and is now ready for use.
machine is active
Stresses that the machine is powered on and in a state of readiness.
machine is ready
Highlights that the machine is prepared and available for operation.
machine is online
Focuses on the machine's connectivity and availability within a network.
machine is activated
Emphasizes the action of bringing the machine into an operational state.
machine is enabled
Highlights that all necessary permissions or settings are in place for the machine to function.
machine is commissioned
Indicates the machine has been formally put into service after testing and approval.
FAQs
How can I use "machine operational" in a sentence?
You can use "machine operational" to describe the status of a machine that is functioning correctly or ready for use. For example, "The "machine operational" status was confirmed before the start of the experiment".
What's a more concise way to say "machine operational"?
Alternatives include "functioning machine" or "working machine". The best choice depends on the specific context.
Is it redundant to say "fully machine operational"?
While not strictly incorrect, "fully machine operational" can be redundant since "operational" already implies a complete and ready state. Consider using simply "machine operational".
What's the difference between "machine operational" and "machine is being operated"?
"Machine operational" describes the machine's state of readiness, while "machine is being operated" describes an action that is currently taking place. The first focuses on the machine's capabilities and the second focuses on its use.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
85%
Authority and reliability
4.1/5
Expert rating
Real-world application tested