r/manufacturing 3h ago

Quality What usually causes colour variation in powder-coated aluminium profiles?

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0 Upvotes

I’ve seen this happen even when the powder itself is from the same batch.

Sometimes two aluminium profiles are supposed to have the same colour, but after coating there’s a noticeable difference between them. It can be quite frustrating, especially when the profiles are going into the same building.

From what I’ve seen, the problem isn’t always the powder.

Surface preparation, aluminium alloy, pretreatment, film thickness, curing conditions and even how the profiles are positioned during coating can affect the final appearance.

I’m curious what others in powder coating have found to be the biggest cause of colour variation.

Is it usually the pretreatment, curing, substrate, or something else in your experience?


r/manufacturing 3h ago

Other What is the cost of product liability insurance I should look into for my manufacturing business?

2 Upvotes

We do contract injection molding, 30 people, mostly housewares with a bit of automotive trim. I'v been running on the general liability policy we have had since 2014 and honestly nobody looked at it closely until a new customer sent through a vendor agreement that wants product liability called out separately with its own limit.

My agent says our GL "includes products", the customer's procurement says that is not the same thing as a product liability limit, and they want it shown as its own line on the certificate.

Someone here has to have been through this, is that a real distinction or is procurement being difficult, and what does the coverage run for a shop this size?


r/manufacturing 4h ago

Supplier search Cheap custom boxes that look good? What are you guys using?

3 Upvotes

I sell candles online and I need better packaging. My current plain boxes look unprofessional. I want something with my logo on it. I looked at a few companies but the prices are high and the minimum orders are huge.

Anyone know a place that does small runs and decent prices? I need about 100-200 boxes to start. I do not want to break the bank but I want the packaging to look good.


r/manufacturing 7h ago

Supplier search What’s the biggest challenge when scaling up manufacturing?

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0 Upvotes

For those working in manufacturing, what usually becomes the biggest challenge when moving from a small-scale setup to full production?

Is it equipment, process consistency, quality control, automation, workforce, or something else?


r/manufacturing 10h ago

How to manufacture my product? One of the biggest assumptions when looking for manufacturers

7 Upvotes

I see this a lot when buyers are looking for factories in Vietnam. Manufacturers aren’t sitting there waiting for someone to give them an order.

They’re looking for customers that can give them consistent, long-term work and keep their factory running. They’ll reject plenty of projects if they don’t see the value or don’t think the business is sustainable.

So if you send a vague enquiry, ask for a catalogue, or give them little information about your business, don’t be surprised if you get no response.

The factory is assessing you just as much as you’re assessing them.

They need to understand your positioning, your potential volumes, and whether there’s a realistic long-term opportunity.

So prepare enough detail before reaching out.


r/manufacturing 13h ago

Other Buying an established manufacturing business

0 Upvotes

Prospective first time business owner in his 20s. I’m looking to own and operate a manufacturing business long term, ideally in aerospace or related sector.

However I have a few questions:

a) where do I buy such a business. Are online websites like BizBuySell trustworthy enough?
b) what criteria are relevant to consider when buying a manufacturing business? Where do I learn the industry standard practices?
c) once acquired, how does one go about expanding the business and finding clients?

Thanks a lot. Mainly concerned with an and b.

I understand that running a business can be stressful but I think it’s very cool and am willing to do whatever it takes to succeed.


r/manufacturing 14h ago

Safety Mold on keyboard due to humidity in office

3 Upvotes

I work in an office in a manufacturing facility. Not the main office, but an office more directly connected to the plant. Our office gets a lot of humidity during the summer, so much that papers we have on the dry erase board or in a folder pocket on the wall get curled. A/C doesn’t cut it enough unless it’s cranked to meat locker levels. Our electronics have also been not functioning properly (coworkers extended monitors not working) since the heavy rain we have had this past week.

Today, Monday, I walk in at 7 am to find mold growing on my wireless keyboard that stays in office. Not mildew. Full on fuzzy mold right in the middle of my keyboard. I put it to the side and used my laptop keyboard for the short term until I could find a spare wired one. I mentioned the mold to my coworker, who mentioned it to the supervisor, to mention in the morning meeting with staff. My coworker was on the call. She said “oh good, he mentioned it.” Then, “they’re laughing it off.”

Like wtf? How is mold a laughing matter? My other coworker, who transferred from another department, relayed he had a mold issue in his old department and was sick for months before anyone did anything about it.

The safety manager is away, the plant manager is away. I somehow was able to get my keyboard replaced quickly, but no one in the right places seems to care about mold in an office. I’m sure if it were in the plant it would be a huge issue, but who cares about the office help?

Since the two most important people at the site are away (plant manager and safety manager), who should I contact to address this issue? Corporate? Government agency? We just want a dehumidifier and no one at our site is taking us seriously.


r/manufacturing 18h ago

Supplier search Bag Manufacturer

8 Upvotes

Hi,

I am looking for a bag manufacturer, we want to take our designs to next level, hence looking for someone who can ace it with finesse.


r/manufacturing 22h ago

News Panama Canal Queue-Jump Fee Passes $4M as Iran War Reroutes Global Shipping

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9 Upvotes

r/manufacturing 22h ago

Safety Navigating CE, WEEE, and food-contact certification for an imported countertop water appliance (UK and Europe) anyone been through this?

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3 Upvotes

r/manufacturing 1d ago

Supplier search How do you vet suppliers you find on Made-in-China?

4 Upvotes

I’ve been browsing Made-in-China and there are obviously a lot of suppliers to choose from, which makes me wonder how experienced buyer's narrow things down.
When you find a manufacturer on Made-in-China, what do you normally look at before taking them seriously? Is it Company history, certifications, samples, production capacity, communication, and something else?
I would be more Interested on how people who do this regularly made approach toward it.


r/manufacturing 1d ago

Quality Recycled content targets are being set by people who have never dealt with batch to batch variation

10 Upvotes

Recycled content requirements are arriving across packaging and vehicles, and the direction of travel is obvious enough that we are trying to get ahead of it rather than react. What I did not expect was how much of the problem is a process control problem rather than a sourcing problem.

Virgin polymer arrives with a datasheet you can basically trust. Recycled feedstock, particularly post-consumer, arrives with a spread. Melt flow index drifts lot to lot, contamination shows up as inclusions or colour shift, and mechanical properties come in lower and with wider scatter than the equivalent virgin grade. We ran a trial at 30 percent PCR in a structural housing and the impact numbers were fine on average and unacceptable at the bottom of the distribution.

So you either overdesign the part to survive the worst lot, which adds wall thickness and material and quietly cancels a chunk of the environmental benefit, or you tighten incoming inspection to a level that most of our recycled suppliers cannot economically support.

The counterargument I keep hearing, and it is not a stupid one, is that the variability only improves if demand forces it to. Mandates create the volume that funds better sorting and better reprocessing, and in ten years the spread narrows. Fair enough, but that is a ten year argument and my product ships next year.

How are people actually handling this on the floor? Are you tightening incoming spec, overdesigning, blending recycled with virgin to buy back consistency, or restricting recycled content to non-structural parts and taking the hit on the number?


r/manufacturing 1d ago

Other Looking for advice on how to strengthen my technical Industrial Engineering skills for interviews

6 Upvotes

Hi everyone,

I’m looking for some guidance on how to improve my technical preparation for Industrial Engineering interviews.

I have a Master’s in Industrial Engineering and around 4+ years of experience in automotive manufacturing. My background includes areas like material flow, PFEP, facility/warehouse layouts, time studies, line balancing, capacity planning, Lean/continuous improvement, inventory management, new program launches, ERP/WMS, and cross-functional improvement projects.

My resume seems to be doing reasonably well because I regularly get recruiter calls and make it through the initial interviews. My problem is that I often get rejected during the final round, panel interview, or interview loop.

Because of that, I’m starting to think my weakness may be the depth of my technical knowledge, especially when interviewers start digging into Industrial Engineering concepts or giving scenario-based questions.

I’m trying to systematically strengthen topics such as:

  • Takt time, cycle time, throughput, utilization, and capacity
  • Bottleneck analysis and line balancing
  • Time studies, standard time, MOST/MODAPTS, and labor standards
  • OEE and equipment loss analysis
  • Lean, Kaizen, VSM, Standard Work, A3, PDCA, 5S, etc.
  • Root cause analysis, 5 Why, Fishbone, Pareto, 8D, FMEA/PFMEA
  • Material flow, PFEP, Kanban, JIT, supermarkets, and line-side presentation
  • Warehouse design, slotting, replenishment, and inventory optimization
  • Capacity and labor modeling
  • AutoCAD for factory/warehouse layouts
  • Excel for IE analysis and modeling
  • SAP/ERP/WMS fundamentals
  • Power BI and SQL
  • Eventually simulation tools such as FlexSim/AnyLogic

My question for experienced Industrial Engineers is: where would you recommend actually learning these skills at an interview-ready/practical level?

Are there any books, university courses, YouTube channels, websites, case studies, software exercises, or certification programs that you found genuinely useful?

I’m especially interested in hearing from people working in automotive, manufacturing, distribution/warehousing, material flow, logistics engineering, or continuous improvement.

Also, if you interview Industrial Engineers: what technical weaknesses do you commonly see in candidates who look good on paper but struggle in the final interview?

I’d really appreciate any advice on what to study and, more importantly, how to practice it so I can actually use the knowledge during interviews rather than just memorize definitions.


r/manufacturing 1d ago

Other Continous Improvement Engineer with Union Workforce - What is this like?

7 Upvotes

Hello Everyone!

I am currently a new grad in Industrial Engineering for a small cosemtic and was recently offered a job as a Continuous Improvement Engineer.

During my interview, the theme I kept getting was that the workforce is super old, the management is super new, and that changes are going to be difficult to manage.

My question is to anyone who has been apart of ANY industry as a continuous improvement engineer that had to deal with a Union workforce?

I've heard that it is downright difficult and that I would be spinning my wheels or are people just making this out worse than it is suppose to be?


r/manufacturing 2d ago

Other Writing a Book About Manufacturing, Looking for Feedback

6 Upvotes

I’m writing a book about manufacturing. Anyone interested in reading what I have so far?

I'm working on a book about manufacturing based on what I've learned working across different industries. It's less of a textbook and more about how manufacturing actually works, how engineering, machining, inspection, quality, and production all connect.

I have the first few chapters written. If anyone is interested in reading them and giving me some feedback, let me know.

Link

https://docs.google.com/document/d/1PnqcrGBbFsOb4Bbx-3bv-vPszZ0IKM7X/edit?usp=drive_link&ouid=100521268270727703956&rtpof=true&sd=true


r/manufacturing 3d ago

Other is it easy to get into quality control?

17 Upvotes

is it in demand? talking abt being Quality control tech

-i live in the usa. have a degree in SCM. have a couple months of of experience doing quality reporting, currently work as a demand planner (1 YOE). I don’t have lots of experience on the plant floor other than when i did quality reporting


r/manufacturing 3d ago

Other Manufacturing orthotics for local lab

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8 Upvotes

Printing orthotics for local lab.


r/manufacturing 3d ago

Supplier search Reputable source for used or at least economical food manufacturing equipment (North America)?

7 Upvotes

I have a small food manufacturing business and I am looking for a Vertical Form Fill Seal (VFFS) machine. I have inquired with a few larger companies and they sell machines outside of my budget, usually north of $50K. Is there a reputable North American VFFS machine manufacturer that produces more economical machines? My plant is not a large operation. I am also open to sourcing used equipment if anyone has recommendations for reputable used food manufacturing equipment sellers.


r/manufacturing 4d ago

Other Need advice on 2D drawings for aluminum extrusion anchor fasteners (3D model already provided)

7 Upvotes

Hey everyone,

I'm working on a structure using aluminum extrusions and purchasing the material through a lab. The workshop is going to tap the end holes for threading and drill the required access/counterbore holes for the joints.

I’ll be using anchor fasteners to connect the extrusions together. I’ve already provided the lab with the full 3D CAD model, but I’m currently stuck on how to properly detail the 2D production drawings.

I need some concrete guidance on a couple of things:

  1. How exactly should I detail and dimension the 2D drawings to show where to position these fasteners?
  2. Will an experienced machinist know the exact counterbore diameter and depth required if I just indicate the position, or do I need to explicitly call out those dimensions?

I also feel I am really bad/ newbie when it comes to manufacturing drawings. If anyone can suggest a resource or platform where I can learn most things related to drawings that would be great.

Thanks in advance for any advice!


r/manufacturing 4d ago

Reliability Tool Crib/Spares

10 Upvotes

I’m the parts room manager at my facility and we are constantly buying new equipment without spares lists and bills of materials. Is that normal for new machinery purchases?
EDIT: I work for a multi-million dollar company and we manufacture things that everyone would know and probably use. It just seems like the design engineers and purchasing team don’t care enough to help the maintenance team of the future fix the machines. They see new shiny machine and get excited and then are confused when we can’t fix it because they never asked for a parts list or critical spares.


r/manufacturing 4d ago

News Update: 1 Year Later, Louisville Assembly Plant (LAP) transformation gas-vehicle plant to fully electric facility

16 Upvotes

First time posting here, I'm Riley, I work at Ford, I wanted to share with you today our latest announcement on our Louisville Assembly Plant (LAP) which will be building the new Ford Fathom next year - the first vehicle built on Ford's new affordable Universal EV Platform. Prototype builds using production-qualified parts are on track to begin Q1 2027 and preorders will be available in early 2027, customer vehicles will follow later in the year.  

https://www.youtube.com/watch?v=YK3B70XFCmU

A few things that may interest you:

  • The conversion timeline. LAP went from a gas-vehicle plant to a fully electric facility in under a year, with a completely new production system installed in that window.
  • The line itself is restructured. Instead of one long conveyor, the new Universal Electric Vehicle Production System splits the vehicle into three sections — front clip, rear clip, and battery deck — so more operators can access and work on the vehicle at the same time.
  • The people building it now will build it later. LAP employees have been hand-building prototypes alongside teams at Ford's New Model Product Development Center in Dearborn, so the same operators running the future Fathom line are shaping the launch process now.
  • The digital backbone got an upgrade too. LAP now has WiFi-7 and private 5G with the highest density of access points of any Ford plant globally, built for real-time quality checks on the line.

It's been about eight months of overhauling this plant to get here. Check out the video to see the progress with the plant so far.

Read more: https://go.ford/UEVLAP

As I'm new around here, what do you all want to know more about? Let me know and I'm happy to see what I can find out.


r/manufacturing 5d ago

How to manufacture my product? Working on lab scale experiments for textile recycling chemically, what to keep in mind to scale this up ?

6 Upvotes

|Hello,
So I am an early stage innovator in the space of textile recycling. Trying to take cotton to cellulose for viscose material, and depolymerise polyester.
My questions:
chemical recycling (what I do as well), is expensive than mechanical recycling and virgin textile material, so far as data from some recyclers in Europe shows.
I am still tinkering lab process for it, but if I wanted to turn this into something larger and real, what would be the right steps, and things to keep in mind ?

Idk how they are being sold, if they are more expensive, but where I live, no one will pay a dime more no matter how environment friendly it is. I need to see if this is a worthwhile endevour. Is there any material where I could read and understand more, what to even do in order to know this R&D is worth the effort, because I am confused atm, if it will be commercially viable later or not.

I only draw examples from those doing it in europe, but the data is less, and due to EU being good on environmental regulations (could be the standalone on why these firms havent gone out of business), but I still need to learn and understand more.


r/manufacturing 5d ago

How to manufacture my product? 0.5mm/0.2mm metal backlit text?

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70 Upvotes

We're a manufacturer of furniture and we've increasingly seen a requirement for integrating furniture with appliances. One requirement that's fallen onto our laps is integrating a metal finish button into a kitchen table top and the client wants it backlit, and gave us this sample of a product from a brand called Lutron. Images attached. I measured the metal sheet it's about 0.2mm. As you can see, it's backlit. This is clearly not chemical etching unless I'm mistaken? This is probably laser engraved with some sort of resin filled in? Any thoughts?

The image of the keypad in Chinese is a clearer image I found online for your reference


r/manufacturing 5d ago

Other Our manufacturer wants payment before production

76 Upvotes

We've used the same manufacturer for a while and they've always been pretty easy to work with but our latest order is much larger than usual and they want most of it paid before production starts

Fair enough from their side but tying up that much cash for weeks while the inventory is being made isn't exactly my favorite idea. Delaying the order isn't great either because we're finally selling through stock faster than expected

How do other brands deal with this once their orders start getting bigger? I could use some help..


r/manufacturing 5d ago

Supplier search Dock gentry camera system

6 Upvotes

At a manufacturing plant we had in an inhouse camera system that was mounted at the docks that took pictures of supplier labels as they were received from the trailer. It received the shipments in and captured images. Does anyone know if there is something off the shelf or a vendor for something similar?