JIYAN H138-1Y Pneumatic Single Hole Zero Point Clamp – Round
Specifications
| Parameter | Value |
|---|---|
| Model | H138‑1Y |
| Type | Single hole zero point clamp (round) |
| Outer diameter | 188 mm (7.40″) |
| Height | 53 mm (2.09″) |
| Repeat positioning accuracy | ±0.005 mm (±0.0002″) |
| Max. operating pressure (air) | 1.2 MPa (174 psi) |
| Pull‑down force (at 0.6 MPa) | 55 kN (12,364 lbf) |
| Clamping force (at 0.6 MPa) | 17 kN (3,822 lbf) |
| Center through hole | Ø138 mm (5.43″) |
| Mounting hole circle | Refer to drawing (113 mm / 98 mm / Ø111 etc.) |
| Actuation | Pneumatic (single port) |
Note: Drawing shows additional dimensions (113, 98, Ø11, 18, 8, 100, 50, 50, Ø138). Please refer to the original product drawing for exact mounting hole positions and bolt specifications.
Key Features
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Single pneumatic port activation – simple on/off control for independent zero‑point clamping
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High repeatability – ±0.005 mm (0.0002″) for fast and accurate pallet changes
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Large round compact design – Ø188 mm × 53 mm height, ideal for rotary tables and indexers
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Large center through hole – Ø138 mm opening accommodates coolant, air lines, cables, or large locating pins
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Heavy pull‑down & clamping force – 55 kN (12,364 lbf) pull‑down / 17 kN (3,822 lbf) clamping
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High max. air pressure – 1.2 MPa (174 psi) for robust industrial use
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Hardened steel construction – wear‑resistant, suitable for high‑duty cycles
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Low profile – only 53 mm height saves Z‑axis clearance
Application Scenarios
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CNC rotary tables & 4th/5th axes – low‑profile round shape mounts easily on indexers
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Automated pallet systems – quick and repeatable zero‑point locking for robotic cells
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Horizontal machining centers (HMCs) – large through‑hole allows pass‑through coolant or air
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EDM and precision grinding – clean pneumatic operation, no hydraulic oil mess
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Parts with central locating features – large Ø138 through‑hole accommodates pins, cables, or coolant hoses
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Large diameter workpieces – 188 mm outer diameter provides stable support for oversize parts
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Through‑spindle coolant applications – center hole allows coolant to pass through fixture
Why Choose JIYAN
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Large through‑hole advantage – Ø138 opening allows pass‑through of utilities, reduces fixture complexity
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Precision ground locating surfaces – each unit verified for flatness and repeatable lock‑up
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Compact round form factor – fits standard bolt circles on many rotary tables
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Low profile – only 53 mm height saves valuable Z‑axis stroke on CNC machines
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High clamping force in small height – 55 kN pull‑down in a 53 mm tall package
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Pneumatic only – no hydraulic power unit required, reduces cost and complexity
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Custom adapter plates available – for non‑standard mounting patterns
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