A while ago, a customer called me, immediately asking, "What's the name of that thing you have that can both push and stand? I've searched online for ages, some call it 'adjustable caster with wheels,' others call it 'movable leveling caster,' it's all so confusing!"
I told them, the proper name is leveling caster.
These things are actually quite interesting-they're like the "Transformers" of casters. When you want to move, the wheels touch the ground; when you want to stop, the feet (support feet) come down, and the equipment is instantly stable.
Today, let's talk about these, and use our best-selling GD60S (M12*35mm lead screw) as an example to explain the ins and outs.
I. What can these things actually do? Why can't workbenches do without them?
Have you ever been to a workshop? Those wheeled workbenches are convenient to push, but they wobble when you're actually working on them; even tightening a screw feels like the table is dancing.
Conversely, using fixed adjustable feet is stable, but changing workstations requires four people to lift it, which is exhausting and causes back pain.
Adjustable casters are designed to solve this problem.
They have three states:
When you want to move: the wheels are on the ground, the support feet are off the ground, and you can push it forward smoothly, just like regular casters.
When you want to stop: tighten a few turns with a wrench, lower the support feet, lift the entire machine, and the wheels are off the ground; the machine is practically welded to the ground.
When the ground is uneven: continue tightening; you can fine-tune the height, adjusting the machine to level the lower side.
In short, this is designed for machines that need to be fast and stable.
II. What does the datasheet for the GD60S model mean? Many of our customers bring me parameter sheets and ask me what M12 and 35mm mean.
Let me explain it clearly today:
Screw M12 – 12mm thread diameter, metric, compatible with most equipment base holes on the market, offering excellent versatility.
Screw length 35mm – This means the screw is 35mm long enough to screw into the equipment and leveling casters. This length is suitable for medium-thickness equipment base plates, ensuring a secure fit without wobbling.
Adjustable travel – This may not be listed on the parameter sheet, but it's extremely important. GD series leveling casters typically allow the support feet to lower by 10-15mm. What does that mean? Even if there's a difference in ground level, you don't need to use cardboard anymore; just tighten the feet to level it.
Single load capacity – The GD60S generally can only support 250kg per unit in static loading. Using four together, a piece of equipment weighing one or two tons can be used stably.
III. Why do experienced operators choose height-adjustable casters? These three advantages are the most practical:
1. Saves space and money
Do the math: A standard solution requires buying four casters + four adjustable feet, eight items to install on the base plate. Not only does it take up space, but installation also requires aligning the holes – isn't that troublesome?
Height-adjustable casters do the work of two, keeping the base plate clean and tidy, making it more cost-effective in the long run.
2. Wheels last for years
If ordinary casters are left stationary for a long time, the wheels will develop flat spots, just like a car tire developing a dent after being parked for a long time. Pushing them again will result in a jerky motion.
In support mode, height-adjustable casters have wheels that are suspended in the air, bearing no weight. We've conducted tests, and with the same usage frequency, raising the casters can extend their lifespan by over 50%.
3. Greater Precision
A customer in West EU who manufactures precision instruments once told me something that stuck with me: "For my equipment, a 1mm difference in unevenness on the ground can result in a 5% difference in the test results."
The advantage of raising the casters is that each of the four feet can be individually fine-tuned, bringing the equipment to a perfectly level position. This is crucial for machine tools, laboratory equipment, and testing instruments.
IV. Avoid these pitfalls during installation and use (truly lessons learned from customers)
1. Installation Precautions:
Base Plate Must Be Flat: If the base plate is already crooked, adjusting the casters will also result in a crooked installation. This must be confirmed beforehand.
Don't Overtighten: For M12 lead screws, the torque should be appropriate. Overtightening can easily damage the lead screw.
Drill Holes Must Be Deep Enough: The GD60S lead screw is 35mm long. You must ensure that the threaded hole on the equipment is at least 25mm deep; otherwise, it won't be fully tightened and won't lock properly.
2. Usage Tips:
Always retract the support legs before moving the machine:** One of our customers had a worker forget to retract the legs and forcefully push the machine, resulting in worn-out support legs. This thing is made of iron, and the ground is hard; a head-on collision is unbearable.
Adjusting with tools is easier: The adjusting nut of the GD60S can be tightened with a wrench. If you find it difficult to tighten, you can add a socket to extend the lever arm, making it much easier.
Regularly adjust the threads: If it's not adjusted for years, dust or rust will accumulate in the threads, making it stuck when you try to adjust it again. It's recommended to apply some oil every quarter and turn it a couple of times to keep it smooth.
3. How to solve common problems?
What to do if it won't turn: Spray some WD-40, wait a while, and then slowly turn it. Never use pipe wrenches to force it, as this can easily deform the nut.
Waving when pushing: Check if all four feet are on the ground. If the ground is uneven, fine-tune each foot until all four feet are engaged.
Loose screw: Check if the locking nut is tightened properly. If not, add a spring washer for better anti-loosening effect.
V. Where is this thing used? Here are a few real-world scenarios:
Workshop workbenches: These are the most common. They need to be moved frequently for work, so raised casters are a perfect match.
Small equipment: Like packaging machines, marking machines, and testing instruments. They need to be moved during setup and stable during use.
Display cases: Like the glass display cases in shopping malls. With raised casters underneath, they can be moved for cleaning and easily secured with a screw, preventing customers from knocking them over.
Medical equipment: Examination beds and instrument carts need to be quiet, smooth, and stable. Raised casters perfectly meet these requirements.
VI. A real-world case: Last year, a car parts factory in China had 30 assembly workbenches with ordinary casters. The workers constantly complained to me, "These workbenches wobbled terribly. I was afraid to tighten the screws too much, afraid of bending the work."
Later, they replaced them all with GD60S casters. A few days ago, I revisited them, and the workshop foreman pulled me aside and said, "Now the workers are all eager to use the new workbenches. They say they're much more stable and confident."
That's more reliable than anything else.
VII. Why do we recommend you try our GD60S?
Strengthened Lead Screw: Made of M12 lead screw, 45# steel, heat-treated, it's 50% stronger than ordinary lead screws and less prone to breakage.
High Thread Precision: 28g-grade thread, smooth and non-jamming.
Wear-Resistant Wheels: Made of PU material, quiet when pushing, won't damage floors.
In Stock: We keep this model in stock year-round; small orders can be shipped within 48 hours, no waiting.
Finally, let me be honest: While height-adjustable casters may seem a bit more expensive than regular casters, they offer the benefits of two things, save installation time, and most importantly, make the equipment more stable, allowing workers to work with greater peace of mind. Do the math yourself.
If you'd like to try it, contact us anytime to send a sample. Install it and try it out, and you'll see if what I've said is true.
Robin Cheu
Marketing Manager
sales@shangxincaster.com
Ningbo Shangxin Caster Wheels
No.187, Langxia street, Yuyao city, Ningbo, Zhejiang, China.
Tel. +86 0574-62188162
Whatsapp/Mob. +86 152 5836 8162
Wechat: robin-cheu
www.shangxincaster.com
