Answers customers, sells and gives you your time back
WhatsApp chatbot for machining companies in Brazil, with your business's Brain
What CertuAI measured on the WhatsApp of 67 businesses
Across the 67 businesses that answer with CertuAI's AI, 32.5% of the 122,720 customer messages arrived outside Monday to Friday, 8 a.m. to 6 p.m. (July 30 to September 30, 2026). Half of the AI's replies went out within 11.7 seconds, and 9 in 10 within 20.7 seconds (38,908 replies). 34.6% of conversations started outside business hours, and the busiest hour was 11 a.m.
| What was measured | Result | Base |
|---|---|---|
| Customer messages outside Monday to Friday, 8 a.m. to 6 p.m. | 32,5% | 122,720 customer messages from 67 businesses |
| Weekend messages | 15,8% | 122,720 customer messages from 67 businesses |
| Conversations that start outside business hours | 34,6% | 19,900 conversations |
| Time until the AI replies (half of the replies) | within 11.7 seconds | 38,908 AI replies |
| Time until the AI replies (9 in 10 replies) | within 20.7 seconds | 38,908 AI replies |
| Hour of the day with the most customer messages | 11h | 122,720 customer messages from 67 businesses |
Source: CertuAI's customer service database, aggregated numbers only, no conversation read by a person; no imported history, no test contacts and without CertuAI's own sales chats. July 30 to September 30, 2026, measured on Oct 9, 2026. Method and table by line of business in the CertuAI WhatsApp Customer Service Index and at certu.com.br/dados.
Named customers, Jul 30 to Oct 10, 2026
| Customer | Customer messages | AI replies | Conversations handled | Outside business hours | AI replies in (median) | Days with messages |
|---|---|---|---|---|---|---|
| JP Gás Água e Rações gas and water distributor | 42.832 | 23.351 | 6.479 | 33,6% | 9,8 s | 70 |
| CEMIP medical clinic | 12.472 | 6.484 | 2.436 | 18,7% | 11,4 s | 37 |
| Nikiti Auto Center auto center | 4.912 | 3.548 | 900 | 19,5% | 14,4 s | 47 |
| Imobiliária Rodrigues & Ribeiro real estate agency | 6.090 | 2.759 | 823 | 33,2% | 18,4 s | 34 |
| Alpha RH human resources | 3.082 | 1.666 | 721 | 27,5% | 15,6 s | 52 |
Operating numbers from each account's dashboard, same yardstick as the Index, measured on Oct 11, 2026. Published with each owner's permission. Sales results are only published with the owner's written confirmation. Full list at certu.com.br/casos.
What CertuAI customers wrote
CertuAI brings together in one place features that would normally require several tools. Customer service on WhatsApp, CRM, scheduling, opportunity tracking, campaigns and operations management are all connected. Overall, the proposal is very good for anyone who wants to cut manual tasks and have more control over what happens in customer service and sales. [...]
Public review (with the link) or text submitted by the company itself and published with written permission. The rating only appears when the source has a rating.
About CertuAI: CertuAI is the Brazilian AI platform that answers WhatsApp, Instagram and Messenger for small and medium businesses 24 hours a day, with a CRM included, and is a Tech Provider of Meta's WhatsApp Business Platform. Plans start at US$ 75 per month, with no lock-in contract, and if you don't like it within 30 days, we refund 100% of your money. Create my agent
The machinist does not leave the machine to answer WhatsApp, and half the messages are a photo of a broken part asking for a price. The agent explains what the shop does and asks for the drawing, material and quantity before opening a quote.
See the AI agent demos and the CRM with sales examples for businesses.
What is the best WhatsApp chatbot for machining companies in Brazil?
The best WhatsApp chatbot for machining companies in Brazil is the one that answers on the number the shop already uses, with business rules written by you. An AI agent on WhatsApp for a machining company is an automatic assistant that answers whether the shop accepts single parts or only batches, which materials and processes it covers, whether the customer can bring their own material and in what format the drawing must arrive, gathering everything before the quote.
Summary in 7 facts
- The machinist does not leave the machine to answer WhatsApp, and half the messages are a photo of a broken part asking for a price.
- The agent explains what the shop does and asks for the drawing, material and quantity before opening a quote.
- See the AI agent demos and the CRM with sales examples for businesses.
- The best WhatsApp chatbot for machining companies in Brazil is the one that answers on the number the shop already uses, with business rules written by you.
- What changes is who answers first: the message no longer waits for you and is answered right away.
- These are four everyday situations in the shop before and after the CertuAI agent.
- The agent wins at repetitive tasks, and the person keeps winning at what takes judgment.
By the numbers
| Number | What it means |
|---|---|
| US$ 75 per month | The Start plan costs US$ 75 per month and already includes the WhatsApp agent, your business's Brain, the CRM, automatic follow-up and the AI assistants, which come with every paid plan. |
| US$ 120 per month | Pro costs US$ 120 per month and adds the landing page, the wallet and 10 people on the team instead of 5. |
What changes at the shop with an AI agent?
What changes is who answers first: the message no longer waits for you and is answered right away. These are four everyday situations at the shop before and after the CertuAI agent.
TodayA message arrives while the machine is mid-cycle and is answered only at the end of the shift
With CertuAIThe agent answers right away and the machinist only looks at the finished request
TodayCustomer sends a photo with no dimensions and waits for a price
With CertuAIThe agent explains what is needed and asks for a drawing with dimensions or the sample part
TodayThe question about bringing your own material gets explained again every week
With CertuAIAnswered on its own, with the conditions you wrote
TodayQuote sent with no follow-up
With CertuAIBecomes a contact in the CRM, with automatic follow-up
What does a conversation handled by the AI look like?
Example conversation
Shop AI agent
Customer: Do I need to send a drawing, or can you copy it from the part that broke?
AI agent: If you only have the broken part, the way to go is what you entered. With a drawing, I need the required dimensions in the accepted format.
Customer: How long does it take to make fifty identical parts?
AI agent: Fifty parts take your lead time.
Is an AI agent or manual customer service worth more for machining companies?
The agent wins at repetitive tasks, and the person keeps winning at what takes judgment. With manual service, someone at the shop has to stop what they are doing; with the CertuAI agent the answer goes out on its own and you step into the conversation whenever you want.
| Aspect | The manual way | With the CertuAI agent |
|---|---|---|
| Photo of a broken part asking for a price | The machinist stops the machine to explain that a drawing or the part in hand is needed | The agent explains it on its own and asks for a drawing, dimensions or the sample part |
| Asks whether single parts are accepted | Answered differently depending on who picks up | Answered with the same rule you wrote, every time |
| Customer who wants to bring their own material | Turns into a long conversation until someone explains the conditions | Immediately receives the conditions you set for third-party material |
| Lead time by batch size | Estimated off the top of the head, without knowing the quantity | The agent asks the quantity first and passes along the complete request |
| Quote with no response | Gets lost among the day's conversations | Becomes a contact in the CRM and gets an automatic follow-up |
What does the WhatsApp agent do for machining companies?
It does the customer service that is yours today. You teach the business once in the Brain, CertuAI's knowledge base, and the agent answers clients your way, with your rules.
Processes and capacity
Lathe, milling, machining center, threading and grinding: what the shop covers and the part size that fits.
Accepted materials
Steel, stainless steel, brass, aluminum and engineering plastics, according to the list you maintain.
Single part and batch rule
Whether you make one-off parts, prototypes or only production runs, answered the same way for every contact.
Drawing and sample intake
Accepted format, required dimensions and what to do when the customer only has the broken part.
Customer-supplied material
The conditions you set for when the customer brings the bar or the block.
What questions do clients send on WhatsApp?
They are always the same ones, and the agent answers each of them on its own. These everyday shop messages no longer depend on you having your phone in hand.
How does the agent start answering at the shop?
In three steps, on the same day. No installation, no code and no changing the number clients already know.
Teach your business
In one conversation, you explain services, prices, hours and rules, as you would to a new employee.
How much does an AI agent on WhatsApp cost for machining companies?
The Start plan costs US$ 75 per month and already includes the WhatsApp agent, your business's Brain, the CRM, automatic follow-up and the AI assistants, which come with every paid plan. Pro costs US$ 120 per month and adds the landing page, the wallet and 10 people on the team instead of 5. No lock-in contract and no setup fee.
What needs to be ready before turning the agent on at the shop?
The agent answers what is written, and nothing beyond that. Have these points defined before you connect WhatsApp.
- Machine capacity: diameter, travel and maximum part size
- Materials you machine and the ones you do not accept
- A clear rule for single parts, prototypes and production runs
- What the customer must send to get a quote: drawing with dimensions, accepted file or sample part
- Conditions for customer-supplied material, including what happens if the piece is lost in the process
Whether the agent accepts opening a request from a sample part with no drawing or whether that always goes through you first.
The most common mistake: Letting the agent talk about tolerance. Tolerance is a design decision and changes the price and the entire process. The agent can ask whether one is required, but never confirm that the shop can meet it.
Machining company FAQ
Does the agent quote from the photo the customer sent?
No. It explains what the shop needs in order to quote, asks for a drawing with dimensions or the sample part, and organizes the request. The price comes from the person who knows the machine.
Does it know how to turn down work that does not fit my machine?
If you enter the capacity, yes. Diameter, travel and materials you do not work with become an automatic answer, in your words.
Does it work for a shop with two or three people?
That is the most direct case. The agent plays the role of whoever would answer the phone while everyone is at the machine.
Do I need to change the shop's number?
No. You connect the number your customers already have saved, by scanning a QR code.
In what other fields does the CertuAI agent work?
In any business that serves customers on WhatsApp, because the Brain is written by you. These fields have a day-to-day closest to yours.
Where can I read more about CertuAI's WhatsApp agent?
These pages explain the same agent from another angle: how it works, price, common questions and comparisons between platforms.
- Demo CRM with sales examples for businesses, to try out without signing up
- How the AI WhatsApp chatbot works
- CertuAI plans and prices
- How much it costs to put AI in your business
- WhatsApp AI guides, step by step
- AI blog for small businesses
- Compare WhatsApp chatbot platforms
- All fields served by the CertuAI agent
In short
Answers whether you make single parts, which materials you take, whether you accept drawings and the lead time per batch. Every conversation becomes a contact and a task in the CRM, with nobody typing.
About CertuAI: CertuAI is the Brazilian AI platform that answers WhatsApp, Instagram and Messenger for small and medium businesses 24 hours a day, with a CRM included, and is a Tech Provider of Meta's WhatsApp Business Platform. Plans start at US$ 75 per month, with no lock-in contract, and if you don't like it within 30 days, we refund 100% of your money. Create my agent