Handle Thick Coil in One Reinforced Unit

A thick plate decoiler straightener combines coil payoff and leveling for heavy stock. The Jingcui SJR Series is built for medium-to-thick coil from 0.5 to 6.0 mm. It feeds a flat, stable strip into your stamping line.

This 2-in-1 thick plate leveler uses a reinforced frame and higher motor power. It handles thicker plate and heavier coil than standard cradle units.

SJR thick plate decoiler straightener for 6mm coil

What Is a Thick Plate Decoiler Straightener?

A thick plate decoiler straightener decoils and levels thicker coil in one station. The manually expanded mandrel pays off the coil while the rollers flatten it. Combining these steps saves space and shortens setup.

The SJR Series comes in two thickness ratings. Type A covers 0.5 to 4.5 mm. Type B extends to 1.0 to 6.0 mm for the heaviest stock.

Applications

Coil decoiling and straightening before continuous stamping
Hardware stamping and sheet-metal parts
Automotive structural parts, chassis brackets, door locks, brake backing plates
Appliance housings, lighting, and machine parts
Thick-plate straightening for appliance metal stamping of housings and panels

Models & Sizes

Model	Material Width	Thickness (A / B)	Motor (A / B)	Coil Weight
SJR-200A / B	200 mm	0.5–4.5 / 1.0–6.0 mm	3 / 5 HP	3000 kg
SJR-300A / B	300 mm	0.5–4.5 / 1.0–6.0 mm	5 / 7.5 HP	3000 kg
SJR-400A / B	400 mm	0.5–4.5 / 1.0–6.0 mm	5 / 7.5 HP	3000 kg
SJR-500A / B	500 mm	0.5–4.5 / 1.0–6.0 mm	5 / 7.5 HP	3000 kg
SJR-600A / B	600 mm	0.5–4.5 / 1.0–6.0 mm	5 / 7.5 HP	3000 kg
SJR-700A / B	700 mm	0.5–4.5 / 1.0–6.0 mm	7.5 / 10 HP	3000 kg
SJR-800A / B	800 mm	0.5–4.5 / 1.0–6.0 mm	7.5 / 10 HP	3000 kg
SJR-1000A / B	1000 mm	0.5–4.5 / 1.0–6.0 mm	10 / — HP	3000 kg

Technical Specifications

Machine type	2-in-1 thick-plate decoiler & straightener
Material thickness	Type A 0.5–4.5 mm; Type B 1.0–6.0 mm
Material width	200–1000 mm (by model)
Straightening speed	15 m/min
Straightening motor	3–10 HP (by model)
Coil inner diameter	450–530 mm
Coil outer diameter	1300 mm
Coil weight capacity	3000 kg
Dimensions (L × W × H)	5 × 1.9 × 2.5 m
Speed control	Frequency converter (VFD included)

Key Features

2-in-1 Thick-Plate Design

Decoiling and straightening share one reinforced unit. This thick plate decoiler straightener cuts floor space and process steps for heavy stock.

Wide Thickness Range

It handles a broad 0.5 to 6.0 mm range with easy loading. Fast changeover suits varied stamping rhythms.

Japanese Electrical Components

The control box uses Japanese electronic components. They deliver low failure rates and a long service life.

High-Hardness Bearing-Steel Rollers

Rollers are heat-treated, chrome-plated, and ground. High hardness and wear resistance keep precision stable over time.

Thick-Material Hold-Down and VFD

A built-in hold-down improves straightening on thick stock. The variable-frequency drive enables smooth speed control.

thick plate decoiler straightener in heavy stamping line

Line Integration

The SJR Series integrates with the rest of your straightener machines. Add a servo feeder and a coil handling system to complete an automated heavy-stock stamping line.

FAQ

What is the difference between Type A and Type B?

Type A handles 0.5 to 4.5 mm thickness. Type B extends to 1.0 to 6.0 mm for heavier stock.

What is the maximum coil weight?

The SJR Series carries up to 3000 kg across all models.

What width does it cover?

It covers 200 to 1000 mm across eight model sizes.

Is it suitable for automotive parts?

Yes. It suits automotive structural parts, chassis brackets, door locks, and brake backing plates.

Request a Quote

Share your material thickness, width, and coil weight. We will recommend the right thick plate decoiler straightener for your production. Contact Jingcui today.

medium-to-thick plate leveling

SJR Series 2-in-1 Thick-Plate Decoiler Straightener Machine