MC SUPER PRECISION / LEMMA MACHINE VISES AND CLAMPING SYSTEMS

MC Super Precision / LEMMA machine vises and clamping systems

MC Super Precision / LEMMA machine vises: CHW-160V hydraulic machine vises, LM-VE-SC 5-axis self-centering fixtures, LM-OKV modular blocks, and hardened jaws.

MC Super Precision / LEMMA CHW-160V hydraulic machine vises

Precision machine vises MC Super Precision / LEMMA series CHW-160V are engineered for stable workpiece clamping on CNC milling machines. The internal mechanical-hydraulic drive delivers clamping force up to 55 kN, while the rigid monoblock bed prevents deflection during heavy steel milling.

Hardened ground jaw width of 160 mm with maximum workpiece opening reaching 300 mm
Built-in hydraulic booster with mechanical spindle for clamping force regulation
Hardened guideways treated to HRC 48 ensure alignment under heavy cutting loads
Semi-spherical anti-lift segment mechanism prevents upward workpiece displacement

Mechanical-hydraulic clamping force booster MC Super Precision / LEMMA

The built-in power booster of MC Super Precision / LEMMA vises converts spindle rotation into massive axial thrust via an internal piston circuit. The mechanism is sealed against chips and coolant swarf, maintaining uniform clamping force throughout roughing operations on complex components.

Multi-stage clamping force adjustment with clearly indexed pressure settings
Telescopic screw shield prevents penetration of metal debris and liquid emulsion
Heavy-duty lead screw with precision-ground trapezoidal thread for longevity
Independent high-pressure fluid reservoir eliminates frequent fluid replenishment

Monoblock ductile iron FCD60 body MC Super Precision / LEMMA

The base of MC Super Precision / LEMMA vises is poured from high-tensile spherical ductile iron FCD60 with tensile strength exceeding 600 MPa. Superior structural damping absorbs vibration, ensuring micron-level machining accuracy and dimensional repeatability in mass manufacturing.

Thermal stress-relief processing eliminates internal metallurgical distortions
Precision ground mounting surfaces with parallel tolerance within 0.01 mm
High tensile rating prevents elastic deformation under maximum 5500 kgf load
Induction flame hardening of bed guideways to HRC 45–50 minimizes sliding wear

Self-centering 5-axis vises LEMMA / MC Super Precision LM-VE-SC

Self-centering machine vises LEMMA / MC Super Precision series LM-VE-SC are designed for multi-axis CNC machining centers and rotary tables. Synchronized bi-directional jaw motion delivers fast and accurate workpiece positioning aligned with the machine rotary center axis.

Synchronous dual lead screw with right and left threads hardened to HRC 55
Compact envelope delivers unrestricted cutting tool clearance from five sides
Repeatability of workpiece centering maintained within plus-minus 0.015 mm
Standardized interface hole patterns for mounting on circular machine pallets

Modular flexible parallel vises LEMMA LM-OKV and LM-FRA

Modular clamping systems LEMMA / MC Super Precision series LM-OKV and LM-FRA enable versatile multi-station workholding setups. Configurable stop blocks and modular bed extensions accommodate oversized and extended metallic workpieces across automated production environments.

Multi-station workpiece arrangement on single CNC horizontal tombstone pallets
Fast setup adjustments when shifting between distinct batch production runs
Low-profile design preserves critical vertical stroke along machine Z-axis
Serrated hardened locating racks provide step-locking for movable clamping jaws

Replaceable hardened jaws and accessories MC Super Precision / LEMMA

Replaceable jaws for MC Super Precision / LEMMA vises are manufactured in smooth, serrated, and prismatic profiles for secure grip across diverse part geometries. Precision locating steps ensure repeatable workpiece seating across continuous production cycles without recalibration.

Prismatic V-grooved jaws for accurate centering of round shafts and bar stock
Soft machinable steel jaws for custom contouring to hold delicate components
Deep serrated gripping teeth securely hold rough forgings during heavy roughing
Comprehensive seal maintenance kits with hydraulic piston rings and scrapers

Kinematics and down-thrust anti-lift mechanism of CHW-160V vises

Precision machine vises MC Super Precision / LEMMA series CHW-160V incorporate an engineered semi-spherical segment mechanism for positive downward force translation.

When tightening the main drive spindle, the angled wedge segment converts horizontal screw thrust into a downward vector that holds the sliding jaw and workpiece directly against the induction-hardened bed guideways.

This kinematic configuration prevents workpiece tilt and jaw uplift during heavy-duty milling of slots and contours on CNC machines. The rigid segment support minimizes structural deflection, maintaining parallel alignment of machined surfaces and tight part dimensional tolerances.

Hydraulic booster stage adjustments and clamping force regulation

The built-in mechanical-hydraulic power intensifier of MC Super Precision / LEMMA vises enables indexed clamping force settings ranging from twenty to fifty-five kilonewtons depending on part structural stiffness.

Force level selection is operated via an indexed dial ring regulating high-pressure piston stroke. For delicate thin-walled aluminum components, lower clamping stages prevent surface brinelling and perimeter deformation.

When roughing heavy steel forgings, selecting maximum clamping force ensures reliable workpiece retention without slippage under fluctuating tangential milling cutter loads.

Ductile iron FCD60 metallurgical properties and vibration damping

The bed structure of MC Super Precision / LEMMA machine vises is poured from alloyed spherical ductile iron FCD60 with tensile strength exceeding 600 MPa.

High internal structural damping within the spheroidal graphite matrix dissipates mechanical vibration generated during high-speed face milling on CNC equipment. Critical sliding prism guideways undergo high-frequency induction hardening to HRC 45–50 followed by precision deep grinding.

This metallurgical process reduces friction coefficients, prevents galling, and ensures decades of geometric straightness under continuous industrial operation.

Multi-axis positioning using LM-VE-SC self-centering vises

Self-centering five-axis vises LEMMA / MC Super Precision series LM-VE-SC are designed for rotary tilting tables of multi-axis CNC machining centers.

Symmetrical dual jaw travel actuated by a precision ground right-and-left lead screw locates workpiece center directly on the table rotational axis without manual indicator alignment.

The compact monoblock footprint provides open cutting tool clearance from five directions, enabling multi-sided machining in a single setup. Elevated dynamic stiffness eliminates flutter on thin structural ribs, extending carbide milling tool life.

Multi-station fixture setups on horizontal machining center pallets

Modular vises LEMMA series LM-OKV and LM-FRA are engineered for high-density multi-station workholding on horizontal CNC machining centers. Mounting multiple compact modules along tombstone columns or pallet faces secures dozens of identical parts for continuous automated production shifts.

Serrated stop plates and modular bed extensions permit rapid changeovers when alternating between diverse component batches without disassembling base fixtures. Low-profile construction preserves vertical stroke along machine Z-axis, providing ample clearance for spindle tooling.

Preventative maintenance protocol for hydraulic circuits and seals

Long-term precision of MC Super Precision / LEMMA vises is sustained through regular servicing of the internal booster cylinder and sliding ways.

Routine protocol includes scheduled hydraulic fluid replenishment through sealed high-pressure ports, flushing cylinder cavities to remove wear particles, and checking polyurethane piston seals. Cleaning telescopic metal way wipers and slideway surfaces prevents abrasive debris ingress.

Deploying original seal overhaul packages and replacement scrapers maintains rated clamping force across extended production intervals.

MC Super Precision / LEMMA and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of MC Super Precision / LEMMA and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.