The Wacker Neuson HMS KIT-M2500-SM4S-H35HA – 5100018047 is a modular, heavy-duty electric internal vibrator package specifically designed for professional concrete consolidation on high-spec commercial, infrastructure, and civil projects. Combining the HMS line’s hallmark reliability and portability with a long 13-ft (4 m) reinforced shaft and a high-output 2.5 HP (1.8 kW) M2500 universal motor, this kit delivers powerful high-frequency (up to 16,000 VPM) consolidation for large, deep pours and demanding jobsite challenges. With an induction-hardened 1 3/8” (35mm) hybrid head (H35HA) and robust field-ready components, Wacker Neuson’s solution delivers uniform results, low downtime, and outstanding mix compatibility.

HMS Kit M2500-SM4S-H35HA Overview

This comprehensive kit is made for plug-and-pour operation, including everything a pro contractor or fleet needs for fast, consistent, and safe concrete vibration:

• M2500 Motor: Double-insulated, maintenance-friendly, 2.5 HP (1.8kW), 120V/15A, high-frequency (16,000 VPM) universal drive—handling everything from slab-on-grade to tall walls and piers. The rugged motor housing is splash-resistant and engineered for long service in tough site conditions.

• SM4S Shaft: Reinforced 13-ft (4 m) shaft reaches deep forms and wide spans, yet resists kinking/abrasion in congested pours or sharp corners. Compatible with other heads and shafts for future expansion.

• H35HA Head: 1 3/8” (35mm) hybrid induction-hardened head, delivering heavy amplitude and remarkable wear life—even when vibrating harsh, high-aggregate, or superplasticized mixes. Suitable for all standard concrete placements.

Technical Specifications

Professional Performance – What Sets It Apart?

High-Efficiency Motor Design

• The M2500’s direct-drive system delivers maximum vibration at the head without belts, pulleys, or lossy gearboxes. This keeps compaction consistent across tall columns, thick slabs, or walls with dense reinforcement.

• Double insulation and splash-resistant composite housing ensure jobsite longevity—ideal for day-after-day pouring or challenging outdoor environments.

Long, Reinforced Shaft Technology

• 13 feet of reach opens access to deep forms, wide slabs, caissons, and remote spots not suited to shorter or heavier gas-powered vibrators.

• Stiff, flexible SM4S construction reduces “whip,” transmits more vibration energy, and withstands tough handling; quick-connect coupler supports tool-free head/shaft changes.

Hardened, Hybrid Head for All Jobsites

• The 1 3/8” H35HA is a sweet spot: big enough for mass pours, fine enough for wall or beam detail—delivering rapid consolidation yet fitting within closely spaced rebar. Induction-hardening battles abrasion and extends usable life.

• Excellent results across standard, architectural, high-aggregate, or fast-setting mixes, ensuring professional finishes and reduced honeycombing/voiding.

Key Operator Benefits

• Long Service Life: Carbon brushes last up to 500 hours and are user-accessible; most components can be field-serviced with basic tools, keeping downtime minimal.

• Low-Fatigue Handling: At 38 lbs, the kit is light enough for single-person operation, while the long shaft keeps the motor/control in an ergonomic, upright position even in tall forms.

• Rapid Adaptability: Toolless, quick-connect system means swapping shaft lengths or head diameters is quick—power through multiple job phases with a single motor unit.

• Plug-and-Play Simplicity: Eliminates mixing gas/oil, choke starting, and fuel storage. Just connect to 120V/15A (standard jobsite) and work.

Ideal Applications and Use Cases

• Structural Slabs and Foundations: Achieves maximum consolidation with minimum surface defects in large, deep slabs or multi-cast floor decks.

• Tall Walls, Columns, and Forms: The extended SM4S shaft reaches deep and tall formwork—no need to reposition or rig heavier external vibrators.

• Civil/Infrastructure: DOT- and spec-compliant for bridges, dams, highway piers, and footings that demand high-quality consolidation.

• Precast/Architectural Concrete: Induction-hardened head provides superior finish in architectural elements, panels, and tilt-wall work.

Comparison Table: M2500-SM4S-H35HA vs. Other Models

What Contractors & Reviews Say

• "Remarkably reliable." Contractors cite ultra-consistent consolidation, particularly on larger pours where weaker engines struggle to transmit power to the head.

• "Made switching heads and shafts a snap." Users who pour in variable slab or wall depths appreciate the modular design and quick-connects.

• "Better finishes and fewer bug holes." The high-frequency, induction-hardened head is praised for minimizing visible surface defects and reducing patching work post-pour.

• "Lasts way, way longer than stated." Long-life brushes, durable housings, and robust design yield years of dependable use—even in harsh environments.

Why Choose the HMS KIT-M2500-SM4S-H35HA?

• Unmatched Reach and Flexibility: 13-foot reinforced shaft and tough head mean fewer stops, more placement range, and better results across foundations, vertical forms, and bridgework.

• Fleet-Proven Build: Wacker Neuson’s reputation for rugged, low-maintenance, high-output modular vibrators stands proven on jobsites worldwide.

• Low Total Cost of Ownership: Serviceable brushes, parts, and modular design mean easy updates and reduced “dead motor” downtime.

• One System to Handle It All: Expand with other shafts/heads for any job, from tight columns to massive pours, using the same backbone M2500 motor.