Hydraulic shear KHT 4012 M NC

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Overview
The KHT 4012 M NC is a hydraulic guillotine shear with a swing-beam design. The cutting beam runs in a pivot bearing anchored to the machine frame, providing straight cuts and preventing upper/lower knife jamming. The ESTUN E21 NC controller ensures precise back-gauge positioning.

Highlights

• ESTUN E21 NC control for accurate positioning
• Back gauge with preloaded ball screws
• Pneumatic plate hold-up for thin sheets
• Knives suitable for stainless steel
• Adjustable angular stop and roller-ball work table

Standard equipment

• NC control ESTUN E21S (up to 40 programs / 25 steps; retract during cut; auto return; power-off protection)
• Pneumatic sheet support for thin material
• Controlled back gauge for single cuts and series
• Shadow line for exact cut alignment
• Front support arms (4 positions, 1,000 mm arms for 4,000 mm working length)
• Mobile foot pedal with emergency stop
• Manual cutting gap adjustment
• Full-length finger guard with flip-up section for visibility
• Rear light barrier for back working area safety
• Standard upper and lower knives suitable for stainless steel
• Operating tools and manual

Optional equipment

• Hydraulic oil cooler (recommended for series production/high-temperature environments)
• Additional blade set (stainless steel kit)
• Automatic central lubrication

Machine frame

• Stress-relieved welded steel frame in swing-beam design
• Swinging cutter beam restores clearance between upper and lower knife after each cut
• Benefits: low-torsion cuts, reliable part release, extended knife life, simple kerf adjustment

Material support

• Large work table with roller balls and rigid adjustable angular stop for safe plate alignment
• Long, sturdy support arms to hold large plates

Hydraulics

• Reliable, low-maintenance hydraulic system designed for ease of service
• Hydraulically regulated hold-downs secure the sheet near the cut line during cutting

Back gauge

• Robust back gauge system suitable for demanding production environments
• Preloaded ball screws mounted in protective enclosure; back gauge travel 1,000 mm, X-axis feed 2,280 mm/min

Equipment / Operation

• ESTUN E21 NC control for precise positioning (single cuts and program runs)
• Mobile foot pedal with emergency stop
• Shadow line for accurate cut alignment
• Upper and lower knives suitable for stainless steel

Safety

• Continuous finger guard with fold-up section (folds to 1,000 mm) for improved visibility
• Rear-mounted light barrier protects the back working area
• Safety features compliant with CE regulations

Technical specifications

• Model: KHT 4012 M NC
• Working length: 4,000 mm
• Throat depth: 150 mm
• Cutting angle: 1.5°
• Strokes per minute: 10 H/min
• Hold-downs: 14 positions, capacity 44 t
• Table size: 4,375 mm x 520 mm x 860 mm
• Back gauge travel: 1,000 mm; X-axis speed: 2,280 mm/min
• Front support arms: 4 positions; arm length: 1,000 mm
• Cutting capacity (450 N/mm² max): 12 mm; (400 N/mm² min): 1.2 mm
• Cutting capacity (700 N/mm² max): 8 mm; (700 N/mm² min): 1.2 mm
• Main drive motor: 18.5 kW
• Hydraulic tank volume: 400 l
• Overall dimensions (L x W x H): 4.73 m x 2 m x 2.04 m
• Weight: 13,200 kg