When you buy linear guides or ball screws across borders, you probably worry about one thing first: “What if the packaging is bad and the rails arrive bent or missing parts?"

For long metal rails, that concern is very reasonable. This article explains:

• what kind of issues you may see on arrival,
• why they happen in real shipping environments,
• what we do on packaging to reduce the risk, and
• how we handle it quickly if something still goes wrong.

In real orders, customers sometimes report situations like:

• The wooden crate or cardboard box has deep dents or crushed corners.
• One end of the linear guide has a small impact mark or scratch.
• A rail with multiple blocks seems to have one slider missing.
• For extra-long rails (for example 800 mm and above), the rail looks slightly bent after a rough trip.

None of these make you feel good when you open the box—especially if your machine is waiting to be assembled.

Linear guides, shafts and screws are long, heavy metal parts. During international express or air freight they will:

• be sorted and transferred many times,
• be stacked with other cartons on top,
• sometimes be handled roughly by forklifts or conveyors.

Even with a good carton or wooden box, it is common to see:

• visible marks or dents on the outer packaging,
• a small chance of impact on the rail ends,
• a higher chance of slight bending on very long rails if the handling is violent.

For one rail with several blocks, the blocks are usually packed separately to avoid metal-to-metal collision during transport. This makes sense for protection, but it also increases the risk of:

• one block not being packed by mistake, or
• blocks placed in a different small box, which is not found at first glance.

We are continuously improving our picking and packing process (for example, double checking counts and taking photos before shipment), but as long as people are involved, there is a small chance of human error. The key is: if it happens, we take responsibility and solve it.

To keep the rails as safe as possible on the way to you, we normally:

• Apply rust-prevention oil and protective film on the rails before packing.
• Add foam, paper corners or other cushioning at key positions.
• Choose thick cartons or wooden boxes depending on length and weight.
• Fix the contents inside the box so the rails cannot move too much.
• Pack sliders, support units and other accessories in separate small boxes or bags with labels.
• For long or heavy rails (for example 800 mm+), suggest more stable shipping methods and reinforce the inside of the crate.

These measures cannot guarantee the outer box will look perfect after a long trip, but they greatly reduce the chance that the product itself is seriously damaged.

To protect your own rights and speed up any after-sales handling, we suggest you follow these steps:

1. Open and check the goods as soon as possible
   Count the number of rails, slider blocks and accessories. Check the rail ends, slider appearance and sliding feel by hand.
2. Take clear photos or short videos if there is any problem
   Overall view of the outer box and the damaged area; shipping label or tracking number; close-up pictures of dents, bent sections or missing parts.
3. Contact your sales person or customer service quickly
   Share your order number, a short description and the photos/videos. The more information we have, the faster we can judge the situation and give you a solution.

Once we confirm that the issue is caused by transportation or by our packing mistake, we will provide one of the following solutions, depending on what is most practical for you:

• Send out the missing blocks or accessories again.
• Replace rails that are clearly bent or damaged enough to affect use.
• Offer reasonable compensation or discount on the basis of mutual agreement.

We do not simply blame the courier and leave you alone. For us, the real goal is: get your machine running normally as soon as possible.

If your order includes many long rails (for example 1000 mm and above) or heavy linear motion parts, we usually suggest:

• Choosing a more stable line or air freight solution, plus wooden crates or pallets.
• Shipping in combined batches to reduce the number of transfers.
• Discussing extra reinforcement or special packaging in advance for critical components.

This helps find a good balance between cost and safety and reduces the risk before the goods even leave the factory.

No matter how much we optimize packaging, long-distance logistics always carries some risk—especially for long, heavy metal parts. What we can promise is:

• we treat packaging and checking seriously,
• we are transparent about possible issues, and
• if something goes wrong, we stand on your side to fix it.

So if one day you open the box and find that the guide rail has a dent at the end, or one slider is missing, please keep calm, keep the evidence, and talk to us. Getting problems solved is part of our job, and we are ready to do it.