Home/Custom Parts/Payment Terminal Systems/Keypad Frame
// Payment Terminal Systems

Custom Payment Terminal Keypad Frame

Button retainer frames and PIN pad structural components — precise aperture tolerances for smooth button travel, rubber keymat retainer, and PIN pad structural surround. ABS or PC/ABS.

±0.1 mm aperture tolerance
ABS or PC/ABS
No CAD needed
CNC machined keypad frame components being inspected — EKINSUN payment terminal parts
Keypad frame precision: button apertures held to ±0.1mm for consistent key travel and feel. Frame machined as part of the full terminal structural set — all parts verified together before shipment.

What the Keypad Frame Does

The keypad frame (button retainer or PIN pad frame) holds button caps or a rubber keymat in precise position above the PCB switches. It is typically a separate injection-molded part that clips or screws into the main housing — allowing keypad service or replacement without full terminal disassembly.

Critical design requirements:

  • Button aperture tolerance — ±0.1–0.15 mm clearance per side; too tight and buttons stick, too loose and buttons rattle
  • Keymat seat — if using a rubber keymat, the frame must retain the keymat precisely so all actuators align with the PCB switches below
  • Switch pre-travel — the frame controls the vertical position of the keymat or button cap relative to the PCB switch actuation point
  • Mounting interface — clip hooks or screw bosses that hold the frame against the main housing without flex under button presses

Keypad frames are tolerance-critical. A 0.2 mm error in button aperture position causes a button that feels spongy or sticky. We verify button clearances in the CAD before machining prototypes, and hold ±0.1 mm in production tooling.

Keypad Frame and Button Structure Parts

Button retainer frames and keypad structures machined for PIN pad terminals and handheld devices:

Custom CNC machined keypad frame and structural parts overview — EKINSUN
Keypad frames with button apertures — each opening CNC milled to exact key size ±0.1mm.
Precision machined structural frame for keypad button retention by EKINSUN
Keypad retention frame — structural ribs and button retainer features machined in ABS or PC/ABS.
EKINSUN workshop operator machining keypad frame structural part on CNC milling machine
CNC milling centre machining a keypad frame component — precise aperture geometry with 0.1mm wall features.

Frames are milled from 6061 plate with M3 fixing bosses tapped in place.

Frequently Asked Questions

±0.1–0.15 mm per aperture. Clearance between button cap and aperture wall is 0.1–0.2 mm per side.

It holds the keymat or button caps in position against the PCB switches. Separate from the housing so the keypad can be serviced or replaced without full disassembly.

Yes. Send the reference terminal or keypad section photos and button layout dimensions. We model the frame and confirm aperture positions before manufacturing.

ABS is standard for keypad frames — good dimensional stability, low moisture absorption (important for button clearance consistency), and easy to mold to precise tolerances. PC/ABS is used when the frame must withstand higher impact — for example, handheld terminals dropped in commercial kitchen environments.

Quote — Keypad Frame

Layout dimensions or reference. Reply in 12h.

// Qty & price

1 pc

Sample price

Confirm fit before a run

10–50

Unit price drops

Setup cost shared

100+

Best price

All tiers quoted upfront

  • →No distributor — you pay the maker directly
  • →CAD saved after first order — reorder anytime at lower unit price

[email protected]

Need a Custom Keypad Frame?

Send button layout and reference photos. We hold ±0.1 mm on all apertures. No CAD needed. Quote in 12 hours.

Get a Quote →