Fixed Foot with Profile Base

OEM / ODM Available Free Sample Available ISO 9001:2015 ISO 14001 RoHS REACH

Non-adjustable foot that bolts to the profile end at a fixed height, giving higher stiffness, lower cost and a repeatable frame height for jig-built and volume frames.

Wholesale Price $0.90 - $7.20 / pc per pc

Material	Die-cast or machined aluminium foot block; steel base option
Alloy Grade	ADC12 die-cast or 6063-T5 machined
Temper	custom
Section Size	30x30 to 60x60 mm and 40x80 mm sections
Slot	4 x M6 to M10 bolts plus slot engagement
Length	Foot height 20-60 mm depending on section
Tolerance	±0.2 mm on foot height
Surface	Anodised or powder coated; zinc-plated steel base
MOQ	200
Lead Time	20-30 days after deposit
Loading Port	Shanghai / Ningbo
Supply Ability	80,000 pcs per month
Payment Terms	T/T 30% deposit + 70% before shipment \| L/C at sight
Trade Terms	FOB \| CIF \| EXW
Certifications	ISO 9001:2015 \| ISO 14001 \| RoHS \| REACH

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Levelling feet · Fixed height

A fixed foot bolts to the end of a profile at a set height. It has no thread and no adjustment: the frame height is set by the length the members are cut to, and the foot simply gives that cut end a stable base and a floor interface.

It sounds like a downgrade from an adjustable foot, and on a one-off frame it often is. But on a frame built to a jig, or on a product made in volume, the fixed foot is the better engineering answer. It is stiffer because there is no thread to flex, it is cheaper because there is no machined thread or locking nut, and it is repeatable because every frame comes out at exactly the same height without anyone adjusting it.

The case for not adjusting

Stiffness. A threaded stem is the most flexible part of a levelling foot. Remove it and the foot becomes a rigid block bolted to the profile end, which raises the frame’s natural frequency and reduces deflection at the corners.
Repeatability. A frame that is assembled, not adjusted, comes out at the same height every time. On a production line where frames have to mate with conveyors or with each other, that matters more than the ability to compensate for a floor that is not level.
Cost. No thread rolling, no locking nut, no spanner flats. On a volume product the saving is real, and it also removes an operation from the assembly line.
Tamper resistance. A fixed foot cannot be walked out of adjustment by vibration, and it cannot be changed by an operator who should not be changing it.

What the frame has to guarantee instead

The trade-off is that the frame now has to be accurate. If the floor is not level, the frame cannot compensate for it, so either the floor has to be good enough, or the frame has to be shimmed at installation. The usual practice is to set the frame on shims under the feet, level it, then bolt the feet down — which gives the rigidity of a fixed foot with the levelling done once, at installation, rather than at every corner for the life of the machine.

The members also have to be cut accurately. A fixed foot magnifies a cutting error: if one leg is 2 mm long, the frame rocks by 2 mm with no way to take it out. That is why fixed feet belong with cut-to-length members from a single supplier rather than with members cut on site.

Profile	Foot base	Fixing	Height range	Static load
30 × 30 mm	60 × 60 mm	4 × M6	20-40 mm	700 kg
40 × 40 mm	80 × 80 mm	4 × M8	25-50 mm	1,200 kg
45 × 45 mm	90 × 90 mm	4 × M8	25-55 mm	1,500 kg
60 × 60 mm	100 × 100 mm	4 × M10	30-60 mm	2,200 kg
40 × 80 mm	80 × 120 mm	6 × M8	25-50 mm	1,800 kg

Three ways a fixed foot is built

Bolt-through baseA flat plate bolted to the end taps of the profile. The simplest form and the one used on most jig-built frames.

Profile-base blockA machined block that seats into the profile slot as well as bolting to the end, which locates the foot positively and takes shear through the slot rather than through the bolts.

Integrated base plateThe foot is a base plate in its own right, with the profile bolting down onto it. Used where the frame also has to be anchored to the floor.

Practical point: if the frame has to sit on a floor that is not level, a fixed foot plus a shim pack is still usually cheaper and stiffer than an adjustable foot on every leg — the shims are set once at installation and never touched again.

Frequently asked questions

How do I level a frame with fixed feet?

With shims under the feet, set once at installation. Level the frame on shims, then bolt the feet down. The shims are not touched again, which is why the frame stays in adjustment.

Are fixed feet strong enough for a heavy frame?

They are stronger than an adjustable foot of the same base size, because there is no thread to flex. The load path is a solid block from the profile end to the floor.

Can the foot be made in a custom height?

Yes. The height is set by the foot block or by the length the profile is cut to, so a custom height is a drawing change rather than a special part.

Do fixed feet need a locking nut?

No. There is nothing to lock — the height is fixed by the frame geometry.

Can the fixed foot be anchored to the floor?

Yes. The profile-base block version can be drilled for anchor bolts, which gives a rigid, anchored foot with no adjustment to drift.

Send the frame height and the cut list

Tell us the frame height, the profile sections and how the frame is built. We will return the foot block, the cut-length tolerance that holds the height and FOB pricing within one working day.

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