Hydraulic Quick-Change Pallet Clamps

Power Workholding

Product Information

Hydraulic Quick-Change Pallet Clamps are a hydraulicly released, mechanically locked Quick-Change system. The system operates through a piston rod and steel ball engagement design that secures the pallet to a precision taper sleeve mounted in the fixture base. During clamping, hydraulic pressure activates the mechanical lock, lowering the piston rod until steel balls engage the block and seat it against the taper surface, providing high-precision positioning. The mechanical lock maintains clamping force independently of continuous air supply.

The clamp assembly consists of two primary components: the phydraulic clamp unit and a receiver block. The clamp unit mounts to the pallet side and engages with the receiver block, which is attached to the fixture plate. Hydraulic pressure actuates the clamp, drawing the pallet downward and engaging the mechanical lock mechanism. The system provides locating repeatability of 3 micrometers, eliminating the need for fixture alignment inspection in the machining center. Air blow ports remove foreign material from seating surfaces, and optional seat check functionality allows gap sensing to verify proper engagement.

Two clamp configurations are available: Datum clamps provide absolute location with no relief in any axis, functioning as the primary locating point, while Guide clamps incorporate clearance for lateral movement. Guide clamps can be paired with Cut Block receiver blocks to orient relief in a single axis, creating a controlled secondary locating point. This combination allows proper kinematic constraint of the pallet using multiple clamps.

Receiver blocks are interchangeable between Pneumatic Quick-Change Pallet Clamps and Hydraulic Quick-Change Pallet Clamps, allowing common pallet blocks across both clamping technologies.Clamps are available in four output force ratings: 4kN, 6kN, and 10kN. Clamp units and receiver blocks can be ordered separately to configure systems for specific applications. For details on Reciver Blocks click here.

Hydraulic Quick-Change Pallet Clamps

PART NO.	Max Clamping Force (kN)	Type	Maximum Pressure (Bar)	A	B	C	D	E	F	S	Lift-Up Force (kN)
VS0040-MD	4	Datum	70	56.6	60.5	51	46	20.6	12	18	2.5
VS0040-MG	4	Guide	70	56.6	60.5	51	46	20.6	12	18	2.5
VS0060-MD	6.2	Datum	70	59.7	67	59	52	22.2	13.5	20	4
VS0060-MG	6.2	Guide	70	59.7	67	59	52	22.2	13.5	20	4
VS0100-MD	9.9	Datum	70	72.5	81.5	74	66	28	16	26	6.5
VS0100-MG	9.9	Guide	70	72.5	81.5	74	66	28	16	26	6.5